Complete the table below by filling out the values of a, b, and c if the given
quadratic equation is written in the standard form ax2 + bx + c = 0. (See example).
10. 7x2 - 4x + 9 = 0
11. x2 = -5x + 2
12. 10x2 = 8
13. (x + 3)2 - 7(x + 3) = 5x2
Pahelp ASAP T^T
Answers & Comments
10. 7x² - 4x + 9 = 0
a = 7
b = -4
c = 9
11. x² = -5x + 2
Standard Form : x² + 5x - 2 = 0
a = 1
b = 5
c = -2
12. 10x² = 8
Standard Form : 10x² - 8 = 0
a = 10
b = 0
c = -8
13. (x + 3)² - 7(x + 3) = 5x²
(x + 3)(x + 3) - 7x - 21= 5x²
(x² + 3x + 3x + 9) - 7x - 21 = 5x²
(x² + 6x + 9) - 7x - 21 = 5x²
x² - 5x² + 6x - 7x + 9 - 21 = 0
-4x² - x - 12 = 0
Standard Form : -4x² - x - 12 = 0
a = -4
b = -1
c = -12