165k views
1 vote
Solve the following quadratic equation by the square root property of equality.

2(x + 7)2 = 64

User Aarsh
by
7.7k points

2 Answers

5 votes
2(x+7)^2 = 64
1 divide both sides by 2
(x+7)^2= 32
2 root both sides
x+7 = 4 * sqrt2
x = 4*sqrt2 - 7
User Joshua Olson
by
8.4k points
4 votes
2(x+7)^2 = 64
2(x+7) = +8/-8

2(x+7) = (+8) 2(x+7) = (-8)
x+7 = (+4) x+7 = (-4)
x = (+4) - 7 x = (-4) - 7
x = -3 x = -11

User Gilbertc
by
8.3k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories