Question

Please help me with this

Answer 1

Answer: the answer is x^2=10

Explanation:

5-2x^2=-15

• step one {subtract 5 from both sides} {example- 5-2x^2-5=15-5
• step two {simplify} {example- -2x^2=-20

• step three {divide both sides by -2} {example- -2x^2 = -20
• {{disclaimer this is part of step three}} -2 -2
• step four {simplify} {example- x^2=10

Answer 2

the answer is x= √10 or √-10