factorise the following 5x^2+9x-2
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Step-by-step explanation:
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Step-by-step explanation:
5x^2+9x-2=0
5x^2+10x-1x-2= 0
5x(x+2)-1(x+2)= 0
(x+2)(5x-1) = 0
x+2 = 0 or 5x-1 = 0
x = -2 or x = 1/5
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