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Mathematics 9 Online
OpenStudy (anonymous):

This is a Quadratic Equation, solve it by factoring please. 0=3x^2-9x-12 Also please explain

myininaya (myininaya):

find two factors of 3(-12) that have product 3(-12) and have sum -9

OpenStudy (mimi_x3):

(3x-12)(3x+3) (x-4)(x+1) x = 4 , -1

myininaya (myininaya):

then replace bx=-9x with -12x+3x then factor by grouping

OpenStudy (anonymous):

Thanks everyone

OpenStudy (mimi_x3):

yw (:

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