factorise
(ii) x (2x + 5) = 3.
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2
Answer:
x(2x+5)=3
2x²+5x=3
2x²+5x-3=0
2x²-6x+x-3=0
2x(x-3)+1(x-3)=0
(x-3)(2x+1)=0
x-3=0
x=3
&
2x+1=0
x= -1/2
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0
2x^2+5x-3
2x^2+3x+2x-3
2x(x-1)+3(x-1)
X=-3/2
Or
X=1
2x^2+3x+2x-3
2x(x-1)+3(x-1)
X=-3/2
Or
X=1
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