What’s the answer because i don’t understand it

5x^2 - 13x + 6

Step-by-step explanation:

(8x^2 - 6x + 2) - (3x^2 + 7x - 4) =

First, drop the first set of parentheses because they are unnecessary.

= 8x^2 - 6x + 2 - (3x^2 + 7x - 4)

Now, distribute the minus sign to the left of the set of parentheses. Think of that negative sign as -1 multiplied by the parentheses. You change every sign inside the parentheses.

= 8x^2 - 6x + 2 - 3x^2 - 7x + 4

Next, group like terms together.

= 8x^2 - 3x^2 - 6x - 7x + 2 + 4

Finally, combine like terms.

= 5x^2 - 13x + 6

d) 48

step-by-step explanation:

16,32,48,64,80,96,112,128,144,160,176,192,208,224,240,256,272,288,304,320,336