SOLUTION: Solve a) |x^2+4x-40|=5 b) |2x^2+5x+9| =0 Can you please help me? I really don't get this. Thankyou so much in advance:)

SOLUTION: Solve a) |x^2+4x-40|=5 b) |2x^2+5x+9| =0 Can you please help me? I really don't get this. Thankyou so much in advance:)

Algebra.Com

Question 712202: Solve
a) |x^2+4x-40|=5
b) |2x^2+5x+9| =0
Can you please help me? I really don't get this. Thankyou so much in advance:)
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
For q#a,

If expression is positive
x^2+4x-40=5
x^+4x-40-5=0
,
or

If expression is negative
-x^2-4x+40=5
.
which cannot be factored.
Using solution to quadratic formula,
or

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