Question

Solve the following quadratic equation using square roots: (x+6)22=8
.(1 point)

{10,−22}


{−2,−10}


{−1.17,−6.83}


​ {−0.34,−11.66}

Answer 1

Assuming the equation is (x + 4)^2 = 8, take square roots:
x + 4 = ±√8 = ±2√2, so
x = -4 ± 2√2.

In decimal form x ≈ -1.17 or x ≈ -6.83. Choice: {−1.17, −6.83}.