Question

Find the product of (x2 + 4x − 3)(2x2 + x + 6).

2x4 + 9x3 + 4x2 + 21x − 18

2x4 + 9x3 + 10x2 + 21x − 18

2x4 + 7x3 + 4x2 + 21x − 18

2x4 + 9x3 + 4x2 + 27x − 18


Find the product of (4x − 3)(2x2 − 7x + 1).

8x3 − 22x2 + 17x− 3

8x3 + 8x2 + 4x − 3

8x3 − 34x2 + 25x − 3

8x3 − 42x2 + 25x − 3



Find the product of 2x4(4x2 + 3x + 1).

8x6 + 6x5 + 2x4

8x8 + 3x4 + 2x4

2x4 + 6x5 + 8x6

6x6 + 5x5 + 3x4


Could someone help me with these?

Answer 1

To multiply two things together, take each part of the first thing, multiply it by each part of the second thing. Add up all the results.

For example, the middle problem:
\[(4x-3)(2x^2-7x+1) = 4x(2x^2-7x+1)-3(2x^2-7x+1)\]\[=4x*2x^2-4x*7x+4x*1-3*2x^2-3*(-7x) -3*1 \]