Question

for what positive value of a does a-2(sqrta+7) equals -4 ??

Answer 1

\[a-2\sqrt{a+7} equals -4\]

Answer 2

what number would you like to take the square root of?

Answer 3

sorry.. i dont get you .

Answer 4

@UnkleRhaukus

Answer 5

it is easy to take the square root of a square number like 1, 4, ...
√1=√1^2=1
√4=√2^2=2
.. ..

Answer 6

so we can plug in any sq. no. ???

Answer 7

got it :) ty

Answer 8

other numbers wont solve the equation