Question

Solve 2x2 - 8x = -7.

negative 2 plus or minus square root of 2

negative 2 plus or minus 2 square root of 2

quantity of 2 plus or minus square root of 2 all over 2

2 plus or minus square root of 2 end root over 2

Answer 1

I give medals

Answer 2

Add "7" to each side then use the quadratic formula:\[\frac{ -(b) \pm \sqrt{(b)^2 -4(a)(c)} }{ 2(a) }\]

where you find your "a", "b", and "c" from your original quadratic equation

\[ax^2+ bx +c\]