Can someone help me ASAP???!!
2 answers:
25x² - 49y²
Step-by-step explanation:
<u>To Find</u>:
The product of (5x - 7y)(5 x + 7)
<u>H</u><u>ow to solve</u>:
Just need to use the formula of a² - b² = (a+b)(a-b)
let's assume a = 5x and b = 7x
<u>Solution</u>:
(5x - 7y)(5 x + 7) = (5x)² - (7y)²
= 25x² - 49y²
Hence required answer is 25x² - 49y².
Answer:
25x ²−49y ²
Step-by-step explanation:
We need to find product of (5x+7)(5x−7y)
By using identity (a+b)(a−b)=a −b ²
We have a=5x,b=7y
Thus (5x+7y)(5x−7y)=(5x) ²−(7y)
<em>let me know if it was helpful</em>
<em />
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