Factorise 80a square-45b square
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Algebraic identify used:
a² - b² = (a - b)(a + b)
Factorised 80a² - 45b²:
80a² - 45b² = 5(16a² - 9b²)
= 5[ (4a)² - (3b)² ]
= 5(4a - 3b)(4a + 3b)
Answer: 5(4a - 3b)(4a + 3b)
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δΙΔΔΗλΣΓΗΛ:
can you solve my maths question too
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