Answer:
x=-1
x=-2
Step-by-step explanation:
4x2 + 12x + 8
To solve a quadratic equation, factorisation Method, formulae method or completing the square method can be used. But for the purpose of this question, the formulae method will be used.
(-b±√(b²-4ac))2a
Where a=4, b=12 and c=8
(-12±√(12²-4(4)(8))/2(4)
(-12±√(144-128)/8
(-12±√16)/8
(-12±4)/8
(-12+4)/8 or (-12-4)/8
-8/8 or -16/8
-1 or -2
