(4x3)+(20x2)+(2x-3)
if you simplify it down first:
(12)+(40)+(2x-3)
because we aren't multiplying, and there is no negative signs between brackets, we can just take out the brackets and simplify:
12 + 40 + 2x - 3
= 60 + 2x - 3
=57 + 2x
=2x + 57
to factorise this,
2(x+28)+1
this is it factorised, but you can have lots of answers. the simplest form is 2x + 57.
double check your signs are right, and you've written down the question properly.
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12 + 40 = 60? Since when?
In any case, i suspect the questioner intended 4xcubed plus 20xsquared plus 2x minus 3 but the browser does not like superscripts.
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Answer this question…A. x4 + 2x3 + 9x2 + 4 B. x4 + 4x3 + 9x2 + 4 C. x4 + 2x3 + 9x2 + 4x + 4 D. x4 + 2x3 + 9x2 - 4x + 4
4x(x + 11)(x + 5)
x(x - 1)(4x - 15)
4x3+10x2+2x+5= (2x+5)(2x2+1)
Take out the common factor, which in this case is 4x2. Divide each of the terms by this common factor. 12x2 - 4x3 = 4x2(3+x)