2 years ago

Expand (x-2)^7 using binomial theorem

2 answers:

4 0

Answer:

Urr answer...

Step-by-step explanation:

Romashka-Z-Leto [24]2 years ago

4 0

Answer:

x^7-14x^6+84x^5-280x⁴+560x³-672x²+256x-128

Step-by-step explanation:

7C0•x^7+7C1•x^6•-2+7C2•x^5(-2)²+7C3•x⁴(-2)³+7C4•x³(-2)⁴+7C5•x²(-2)^5+7C6•x(-2)^6+7C7(-2)^7

=>x^7+7x^6(-2)+21x^5(4)+35x⁴(-8)+35x³(16)+21x²(-32)+7x(64)-128

=>x^7-14x^6+84x^5-280x⁴+560x³-672x²+256x-128

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