Q3.Usea formula to multiply.(4z - 5y)(4z +5y)
162^2 - 25y^2
(42)^2 - (5y)^2
162^2 + 25y^2
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Q3.Usea formula to multiply.(4z - 5y)(4z +5y)
162^2 - 25y^2
(42)^2 - (5y)^2
162^2 + 25y^2
Answered by
0
=(4z - 5y)(4z +5y). Formula (a) square - (b) square
=(4z)square - (5u)square
=16z-25y
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