(5a-3) (a+4) - (2a +5) (3a-4).please give me answer.
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Answered by
3
=> 5a2+20a-3a-12-6a2+8a-15a+20
=>-a2+10a+8
Hope it helps
Answered by
14
Given Equation is (5a - 3)(a + 4) - (2a + 5)(3a - 4)
⇒ (5a * a + 5a * 4 - 3 * a - 3 * 4) - (2a * 3a - 2a * 4 + 5 * 3a - 5 * 4)
⇒ (5a² + 20a - 3a - 12) - (6a² - 8a + 15a - 20)
⇒ 5a² + 17a - 12 - 6a² + 8a - 15a + 20
⇒ 5a² + 17a - 12 - 6a² - 7a + 20
⇒ -a² + 10a + 8.
Hope it helps!
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