Find the product. of (x + 7y) (7x – y)
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this is for fun 12353243

7x² + 48xy - 7y²

Step-by-step explanation:

(x + 7y)(7x - y)

Each term in the second factor is multiplied by each term in the first factor

x(7x - y) + 7y(7x - y) ← distribute parenthesis

= 7x² - xy + 49xy - 7y² ← collect like terms

= 7x² + 48xy - 7y²

c

step-by-step explanation:

x > 1.3

step by step:

8.5−0.9x> 9.8−1.9x

step 1: simplify both sides of the inequality.

−0.9x+8.5> −1.9x+9.8

step 2: add 1.9x to both sides.

−0.9x+8.5+1.9x> −1.9x+9.8+1.9x

1x+8.5> 9.8

step 3: subtract 8.5 from both sides.

1x+8.5−8.5> 9.8−8.5

1x> 1.3

step 4: divide both sides by 1.

1x/1 > 1.3/1