(d) 25(a + b)2 – (a - b)2
Answers
Answered by
0
Answer:
- 25a+25b*2-a+b*2
- 25a+60b-a+2b
- 25a-a+60b+2b
- 24a+62b
Answered by
0
Question:
25(a+b)² - (a-b)²
Answer:
24a²+52ab+24b²
Step-by-step explanation:
25(a+b)² - (a-b)² = [5(a+b)]² - [a-b]²
=[5(a+b)+(a-b)][5(a+b)-(a-b)]
=[5a+5b)+(a-b)][5a+5b)-(a-b)]
=[5a+5b+a-b][5a+5b-a+b]
=[6a+4b][4a+6b]
=6a[4a+6b] + 4b[4a+6b]
=24a²+36ab+16ba+24b²
=24a²+52ab+24b²
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