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Daiana L.

asked • 03/06/19

How do I solve x² + 2x − 8 = 0?

Math math math math math math math math math math

Eric W.

(x+4)*(x-2)=0, then X=-4 AND X=2.
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09/05/19

PAT T.

when the variable is to the 2nd power you have a quadratic equation. The standard form ax^2 + bx + c where a is not equal to zero. to solve using the formula : x = -b + or - the square root of (b^2 - 4*a*c) all over 2*a here you have a=1, b=2 and c = -8 substitute the values in the formula and simplify. you should get the same answer as above. When a = 1 it is faster to solve by factoring but the formula works for any quadratic.
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05/31/20

Vivek A.

The equation of finding X= Square root of (b^2 +or- 4*a*c), Here b=2, a=a and c=-8. And also you can use (x+4)*(x-2)=0,
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08/18/20

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