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Mathematics 12 Online
OpenStudy (anonymous):

how to factor 5x^2 +40x+80=0

OpenStudy (anonymous):

first divide everything by 5

OpenStudy (anonymous):

u should end up with x^2 + 8x + 16

OpenStudy (anonymous):

then just factor ( x+ 4) (x+4 )

OpenStudy (anonymous):

or (x+4)^2

OpenStudy (anonymous):

Having two answers

OpenStudy (anonymous):

both x= -4 and x=-4

OpenStudy (anonymous):

using quadratic equation u would get that x= -4

OpenStudy (anonymous):

Okay same type but the problem os d^2+7d+12=0

OpenStudy (anonymous):

(d+3) (d+4)

OpenStudy (anonymous):

d= -3 and d= -4

OpenStudy (anonymous):

4x^2+17x-15=0

OpenStudy (anonymous):

@praterenn are u attempting them?

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