Answer:
(2x-4)-(6-8x)
2x-4-6+8x
2x-10+8x
10x-10
Step-by-step explanation:
The question's asking the difference between 2 binomial polynomials.
1. To subtract them, you must use the distributive property to distribute the minus sign on the terms in the second polynomial.
2. Combine like terms. -4-6=-10, 2x+8x=10
<u>Answer is 10x-10</u>
7x
9x-2x=7x
5.2
2.5 cm
Rectangle A L x W = 40
Rectangle B L * W = 1/2 (40)
8 * W = 20
W = 2.5 cm