Question

Solve the following quadratic function by utilizing the square root method.

Simplify your answer completely
y=49x^2 - 1

x= ?
_
?

Answer 1

`y = 49x^2 - 1\implies \stackrel{y}{0}=49x^2 -1\implies 1=49x^2\implies \cfrac{1}{49}=x^2 \\\\\\ \sqrt{\cfrac{1}{49}}=x\implies \cfrac{√(1)}{√(49)}=x\implies \cfrac{1}{7}=x`