Question

4(x^2-12x+20) - 3(x^2-2x+1) ? polynomials

Answer 1

Just open the brackets and combine the like terms.

Answer 2

how? distribute first the 4 and 3 first?

Answer 3

Yup. Multiply 4 with all the terms of first bracket and 3 with all terms of second bracket.

Answer 4

(4x^2-12x+20) - (3x^2-6x+3) here now. what's next step?

Answer 5

x^2-6x+23 . here's my answer is it correct?

Answer 6

nah thats not correct..
(4x^2-12x+20) - (3x^2-6x+3) can be written as 4x^2 - 12x + 20 - 3x^2 + 6x - 3..

Answer 7

the first two terms of your answer are right.. it would be +17 instead of +23..

Answer 8

so it should be 17 not 23?

Answer 9

how about this one .
(3x^2+x+1) + (2x^2-3x-5)