solve the equations by using the square root property or completing the square:
1.) y^2=8
2.)(9s+8)^2=9

show steps / solution

Question

solve the equations by using the square root property or completing the square:
1.) y^2=8
2.)(9s+8)^2=9

show steps / solution

anonymous · Answer

Use the square root property.

anonymous · Answer

You forgot the +/-.

$$y^2 = 8 \implies y = \pm \sqrt{8} = \pm \sqrt{2^2 \cdot 2} = \pm 2\sqrt{2}$$

anonymous · Answer

1.) y^2=8
     $$y=\sqrt{8}=2\sqrt{2}$$

anonymous · Answer

i have the answers i need the solutions

anonymous · Answer

use caculater if you want exactly answer

myininaya · Answer

approximate answer?

anonymous · Answer

ey nancy i think its + or - because you can square it

anonymous · Answer

Yeah, the above is the exact answer, the calculator will give you the approximate one.

anonymous · Answer

2.)(9s+8)^2=9$$9s+8=+-\sqrt{9}$$

anonymous · Answer

$$s=(-8\pm \sqrt{8})/9$$

anonymous · Answer

they got the answers

anonymous · Answer

$$s=\frac{-8+\sqrt{8}}{9}$$or$$s=\frac{-8-\sqrt{8}}{9}$$caculator