Solve quadratic equations by factoring
x cubed +3x squared - 4x= 0
2 answers:
<span>x cubed +3x squared - 4x= 0
= x^3 + 3x^2 -4x = 0
=x(x^2 +3x -4) = 0
= x (x+4)(x-1) = 0
x = 0
x+ 4 = 0 then x = -4
x - 1 = 0 then x = 1
answer: x = 0, x = -4 and x = 1</span>
<span>x(x^2-3x-4)=0 </span>
<span>factor </span>
<span>x(x-4)(x+1)=0 </span>
<span>x=0 </span>
<span>x=4 </span>
<span>x=-1</span>
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