(4a+5b)(4a+7b)-(3a+4b)(3a+6b)
Answers
Answered by
23
Answer:
answer = 8a² + 11b² + 18ab
Step-by-step explanation:
(4a + 5b)(4a + 7b) - (3a + 4b)(3a + 6b)
(16a² + 28ab + 20ab + 35b²) - (9a² + 18ab + 12ab + 24b²)
(16a² + 48ab + 35b²) -(9a² + 30ab + 24b²)
16a² + 48ab + 35b² - 9a² - 30ab - 24b²
8a² + 18ab + 11b²
Answered by
12
Answer:
no the answer is 7a^2+18ab +11b^2
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