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MrMuchimi
3 years ago
13

What are the solutions to the quadratic equation 4(x + 2)2 = 36

Mathematics
2 answers:
Alina [70]3 years ago
8 0

Answer:

C. x = -5, and x = 1

Step-by-step explanation:

You have the equation 4(x + 2)2 = 36

You then isolate 4 out of the equation using division on both sides

You are left with (x+2)2 = 9

Next, take square roots

\sqrt({x} +2) ^{2} = \sqrt{9}

This leaves you with x + 2 ± 9

So, x = -2 + 3 = 1

or

x = -2 - 3 = -5

kogti [31]3 years ago
3 0

Answer:

x = -5 and x = 1

Step-by-step explanation:

4( x2 + 4x + 4 ) = 36

4x2 + 16x + 16 = 36

4x2 + 16x - 20 = 0

x2 + 4x - 5 = 0

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