Question

how do l solve 16x^2=49

Answer 1

divide by 16, then take the square root
don't forget the \(\pm\)

Answer 2

Bring the 49 over to the left.

16x^2 -49 =0

Recall that

\[a ^{2} - b ^{2} = (a+b)(a-b)\]
so what is the 4^2 and 7^2 = ?