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Factor this trinomial completely. 15x2 + 11x-12 O A. (3x + 3)(5x - 4) B. (x + 4)(15x - 3) c. (x+3)(15x - 4) COD D. (3x + 4)(5x - 3)

User Barg
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1 Answer

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Factoring means decompose in more simple terms a polynomial

Its called trinomial because have 3 terms

Lets look first at numerical term -12 , its the last term but all the options give -12 as result.

So next see the second term 11x. Find 4 numbers a,b,c,d

such that a•b + c•d = 11

There is a possible combination 4•5 - 3•3 = 20- 9= 11

then look at the options and find which corresponds

User Wajid Khan
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