= - 2:1. Use the identity (x + a)(x + b) = x2 + (a + b)x + ab to find the following products: b + + (a) (2x + 54)(2x + 36) (b) (4x + 5)(4x - 1) f the following by the nrime factorization method: T:
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Answer:
a) 4x²+180+1944
b) 16x²+16x-5
Step-by-step explanation:
a) (2x+54)(2x+54)=2x(2x+36)+54(2x+36)
=4x²+72x+108x+1944
=4x²+180x+1944
b) (4x + 5)(4x - 1)=4x(4x-1)+5(4x-1)
=16x²-4x+20x-5
=16x²+16x-5
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