Question

2(x + 7)2 = 64

Answer 1

what do you need?..

Answer 2

it solved by the square root property of equality

Answer 3

\[2(x + 7)^{2} = 64\]
u mean this ?

Answer 4

yes

Answer 5

first divide the both sides by 2...what will u get ?

Answer 6

\[\frac{ 2(x+7)^{2} }{ 2 } = \frac{ 64 }{ 2 }\]

Answer 7

wait multiply or divide?

Answer 8

oh never mind

Answer 9

ok

Answer 10

why divide by 2?

Answer 11

u cant remove the square sign (^2) while u got the 2 on the same side

Answer 12

so u have to get rid of the 2

Answer 13

\[(x+7)^2=32 \] ?

Answer 14

yep

Answer 15

now take the square root of both sides..

Answer 16

okay

Answer 17

\[\sqrt{(x+7)^{2}} = \pm \sqrt{32}\]

Answer 18

wow sooo easy

Answer 19

you lost me'

Answer 20

now i think u remember these properties\[\sqrt{a} = a^{\frac{ 1 }{ 2 }}\]
so..
\[\sqrt{a^{2}} = a^{\frac{ 1 }{ 2 } \times 2}\]

Answer 21

Sure

Answer 22

\[\sqrt{(x+7)^{2}} = (x + 7)^{2 \times \frac{ 1 }{ 2 }} = (x + 7)\]

Answer 23

so...
\[( x + 7)= \pm \sqrt{32}\]

Answer 24

ok

Answer 25

now u can solve it for x... can u do that ?

Answer 26

surrrrre