Solve the 13th qieation.
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Anushka1981:
3x^2+(12+2)x+8. 3x^2+12x + 2x +8. 3x(x+4)+2(x+4). (3x+2) (x+4)
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3x^2+14x+8
=3x^2+2x+12x+8
=x (3x+2)+4 (3x+2)
=(x+4)(3x+2)
=3x^2+2x+12x+8
=x (3x+2)+4 (3x+2)
=(x+4)(3x+2)
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