26. Solve for x. 5x +10 = x -12x +1 27. Subsitute a, b, and c into the quadratic formula. 28. Solve for x. 6x +12x +7= 3 29. Subsitute a, b, and c into the quadratic formula. 30. Solve for x.

Algebra: Structure And Method, Book 1
(REV)00th Edition
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Chapter12: Quadratic Functions
Section12.2: Completing The Square
Problem 2WE
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Related questions
Question
26-30
Given a quadratic equation, write in standard form and then substitute the values of a, b, and
c into the quadratic formula. Solve the equation by using the quadratic formula.
7x-9x-5=x -1
21. Subsitute a, b, and c into the quadratic
Choices for 21-30:
formula.
1.5/2
BD) x =-+
3
22. Solve for x.
4 (-4)° – 4(12)(9)
A) x =
2(12)
-4 + V(4) – 4(9)(-6)
B) x =
3+ 3
BE) x =
x² -x-6= 3x -11x? – 15
2(9)
23. Subsitute a, b, and c into the quadratic
formula.
-12 +(12) – 4(4)(9)
C) x =
3
CD) x =
2(4)
24. Solve for x.
-12 + V(12) - 4(6)(4)
9+ /177
D) x =
CE) x =
2(6)
12
4x-6+9x? =0
V15
9+ (-9) - 4(6)(4)
E) x =
3
АBC) х
4
25. Subsitute a, b, and c into the quadratic
2(6)
12
formula.
26. Solve for x.
4± (-4) - 4(9)(6)
AB) x =
ABD) x =
2(6)
4+ V(-4)° – 4(12)(9)
2 2/26
5x +10 = x -12x +1
AC) x =
ABE) x =-
9
2(9)
9.
27. Subsitute a, b, and c into the quadratic
formula.
12 + (-12) – 4(4)(9)
-2+58
AD) x =
ACD) x =
2(9)
28. Solve for x.
12 + (-12) – 4(6)(4)
-3+ V3
ACE) x =
3
AE) x =
2(4)
6x +12x +7=3
9 + V(-9)' – 4(6)(-4)
V26
1
ADE) x =
6.
BC) x =
29. Subsitute a, b, and c into the quadratic
2(6)
formula.
30. Solve for x.
Transcribed Image Text:Given a quadratic equation, write in standard form and then substitute the values of a, b, and c into the quadratic formula. Solve the equation by using the quadratic formula. 7x-9x-5=x -1 21. Subsitute a, b, and c into the quadratic Choices for 21-30: formula. 1.5/2 BD) x =-+ 3 22. Solve for x. 4 (-4)° – 4(12)(9) A) x = 2(12) -4 + V(4) – 4(9)(-6) B) x = 3+ 3 BE) x = x² -x-6= 3x -11x? – 15 2(9) 23. Subsitute a, b, and c into the quadratic formula. -12 +(12) – 4(4)(9) C) x = 3 CD) x = 2(4) 24. Solve for x. -12 + V(12) - 4(6)(4) 9+ /177 D) x = CE) x = 2(6) 12 4x-6+9x? =0 V15 9+ (-9) - 4(6)(4) E) x = 3 АBC) х 4 25. Subsitute a, b, and c into the quadratic 2(6) 12 formula. 26. Solve for x. 4± (-4) - 4(9)(6) AB) x = ABD) x = 2(6) 4+ V(-4)° – 4(12)(9) 2 2/26 5x +10 = x -12x +1 AC) x = ABE) x =- 9 2(9) 9. 27. Subsitute a, b, and c into the quadratic formula. 12 + (-12) – 4(4)(9) -2+58 AD) x = ACD) x = 2(9) 28. Solve for x. 12 + (-12) – 4(6)(4) -3+ V3 ACE) x = 3 AE) x = 2(4) 6x +12x +7=3 9 + V(-9)' – 4(6)(-4) V26 1 ADE) x = 6. BC) x = 29. Subsitute a, b, and c into the quadratic 2(6) formula. 30. Solve for x.
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