Solve x2 + 4x − 12 = 0.
a: x = 2, x = −6
b: x = −2, x = −6
c: x = 3, x = −4
d: x = −3, x = 4

last option

step-by-step explanation:

given that δdef is right and isoceles,

assuming that side df is the hypotenuse means that de an ef are the other 2 sides that intersect at 90° and are of equal length.

because they are of equal length, we can say that they are congruent

because they intersect at 90°, their slopes must be opposite reciprocals.

only the last option satisfies these conditions.

a - base

b - exponent

so,