factorise 3x²-2x-11
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Answer:
can not be factored.
Step-by-step explanation:
the first term is 3x^2, its coefficient is 3.
The middle term is -2x, its coefficient is -2
The last term, "the constant" is -11
step 1: multiply the coefficient of the first term by the constant.
3×(-11)= -33
step 2: find 2 factors of -33 whose sum equals the coefficient of the middle term, which is -2.
-33+1= -32
-11+3 = -8
-3+11 = 8
-1+33 = 32
no two such factors can be found with the sum -2
so this trinomial can not be factored.
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