Question

Solve. 2x2 + 12x= 10

Answer 1

Divide both sides by 2:
x^2+6x = 5
Complete the square by adding 9 to both sides.
x^2+6x+9 = 14
Factor the left side.
(x+3)^2=14
Take the square root of both sides.
x+3= +/- sqrt14
Subtract 3 from both sides:
x=-3+/-sqrt14

Answer 2

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