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A coefficient refers to a number or quantity placed with a variable. It is usually an integer that is multiplied by the variable next to it. i) 2 + x² + x Coefficient of x² is 1. ii) 2 - x² + x³ Coefficient of x² is -1. iii) (π/2)x² + x Coefficient of x² is π/2. iv) √2x - 1 There is no x² term in the given expression. We can rewrite it as 0x² + √2x - 1 Therefore, the coefficient of x² = 0, as x² doesn't exist. ☛ Check: Class 9 Maths NCERT Solutions Chapter 2 Video Solution: Write the coefficients of x² in each of the following: (i) 2 + x² + x (ii) 2 - x² + x³ (iii) (π/2)x² + x (iv) √2x - 1NCERT Solutions Class 9 Maths Chapter 2 Exercise 2.1 Question 2: Summary: The coefficients of x² in each of the following equations 2 + x²+ x, 2 - x² + x³, (π/2) x² + x, and √2x - 1 are 1, -1, π/2, and 0 respectively. ☛ Related Questions:
Reference > Mathematics > Algebra > The Quadratic Formula This is all well and good, this "completing the square" method (you might say) but what if the coefficient of x2 isn't a perfect square? We can't complete the square in that situation, can we? Well, not exactly. But there is something we can do. Consider the following: 3x2 - 8x - 3 = 0 3 is not a perfect square, but suppose we took this equation and multiplied both sides by 3...then we would have the following: 9x2 - 24x -9 = 0 What do we need to do to complete the square now? The constant term needs to be 16, and since it's -16, we need to add 25: 9x2 - 24x + 16 = 25 Problem #1 Solution #1 4x2 + 2x - 30 = 0 Thus, to complete the square, the constant term must be 1/4. Since it's -30 (or -120/4), we need to add 121/4 to both sides: 4x2 + 2x - 30 + 121/4 = 121/4 Problem #2 Solution #2 So we have 36x2 - 39x - 12 = 0 To have a completed square, the constant term must be (13/4)2 or 169/16. But it's actually -12, or -192/16. Thus we need to add 361/16: 36x2 - 36x -12 + 361/16 = 0 + 361/16 Special Hint For each problem below, solve by completing the square. Questions8. (1/2)x2 + (3/2)x + 1 = 0  Assign this reference page Click here to assign this reference page to your students. Solving Quadratics by Completing the Square Results with Radicals Blogs on This SiteReviews and book lists - books we love! The site administrator fields questions from visitors. Like us on Facebook to get updates about new resources What is the coefficient of X in X²?The coefficient of x will be 0 because in this expression there is no variable x. The coefficient of x2 is -1.
What is the coefficient of x square 2?The coefficient of x2 in −x2 is −1.
What does coefficient of x squared mean?The coefficient of x^2 tells you a lot about the shape of the quadratic. Firstly, a positive coefficient implies there is a minima (often known as a smiley graph) and a negative coefficient implies there is a maxima (often known as a sad graph). All quadratic graphs are symmetrical about their minima or maxima.
What is the coefficient of X square in the expansion of x 2 Cube?Step-by-step explanation:
Thus it's coefficient will be 0: x^2(x-2)3.
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What is the coefficient of X Square in X 2?
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