Question

multiple=(3x-5)(4x²-6x+7)​

Answer 1

Answer:

I didn't understand

and

multiple=(3x-5)(4x²-6x+7)

Answer 2

Answer:

To simplify an algebraic expression that consists of both like and unlike terms, we need to move the like terms together and then add or subtract their coefficients.

Here, the terms are

$5x² - 7x + 3, - 8x² + 2x - 5 \: and \: 7x² \: - x - 2$

We add these terms as shown below:

See the attachment