Factorise - 2x cube - 5x square - 19x + 12
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Step-by-step explanation:
2x^3-5x^2-19x+12
x common
so=x(2^3-5^2)=
=2×2×2-5×5
=8-25
=17
19x+12
=21
=17-21
=4
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