(x×4)(x+5)=3 (x+1)(x+2)+12x
hardikthebeast8:
do we have to find value of x?
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(x+4)(x+5) = (x+1)(x+2) + 12x
x^2 + 4x + 5x +20 = x^2 + 2x + x + 2 + 12x
9x + 20 = 15x + 2
20-2 = 15x-9x
18 = 6x
3=x
x^2 + 4x + 5x +20 = x^2 + 2x + x + 2 + 12x
9x + 20 = 15x + 2
20-2 = 15x-9x
18 = 6x
3=x
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