Answered

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Which of the following are solutions to the equation below?


4x^2 + 4x + 1 = 9


Check all that apply

Which Of The Following Are Solutions To The Equation Below 4x2 4x 1 9Check All That Apply class=

Sagot :

Answer:

Option B and D

Step-by-step explanation:

Subtract 9 from both sides :

4x² + 4x - 8 = 0

Divide both sides by 4 :

x² + x - 2 = 0

Factorise using factorisation method :

x² - x + 2x -2 = 0

x(x - 1) +2(x-1) = 0

(x+2)(x-1) = 0

Solve for x

x +2 = 0   OR     x - 1 = 0        

x = -2       OR     x = 1

Answer will be Option B and D

Hope this helped and have a good day

ClaraVerlice

Answer:

option b. –2 and d. 1 are correct.

*For detailed explanation refer to the attachment

View image ClaraVerlice
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