Question

Multiply............

Answer 1

Hey there!

In order to multiply these polynomials together, you will take both terms of the first polynomial and multiply them by each term in the second polynomial. You can then combine any like terms to get your final answer. 

(2x² – 5x)(4x² – 12x + 10)

2x² × 4x² = 8x⁴
2x² × –12x = –24x³
2x² × 10 = 20x²

–5x × 4x² = –20x³
–5x × –12x = 60x²
–5x × 10 = –50x

Write all of these terms together. You can rearrange the similar ones to be next to each other. 

8x⁴ – 24x³ – 20x³ + 20x² + 60x² – 50x

Just add or subtract the terms to simplify, if they can be.

8x⁴ – 44x³ + 80x² – 50x

(8x⁴ – 44x³ + 80x² – 50x) will be your final answer. 

Hope this helped you out! :-)

Answer 2

Well, I would simplify the expression because you don't know x. Combine all your like terms first
2x^2-4x^2-5x-12x+10
Then add the like terms together
6x^2-(-7x)+10
That would be your final answer! I don't know if it is correct or not, depending the other answers you get. You can also google it if it doesn't help‍♀️