factorise 80 a square - 45 B square
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Secondary SchoolMath 5+3 pts
Factorise 80a square-45b square
Ask for details FollowReport by Notes2451 12.11.2018
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TooFree
TooFree ★ Brainly Teacher ★
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)
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80a square - 45b square
=5(16 a square - 9 b square) (factories)
5(16 a square - 9 b square)(16 a square - 9 b square)
=5(16 a square - 9 b square) (factories)
5(16 a square - 9 b square)(16 a square - 9 b square)
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