Expand (x-2)^7 using binomial theorem
2 answers:
Answer:
Urr answer...
Step-by-step explanation:
<h3 /><h3 /><h3 /><h3 /><h3>i hope its help to you ✌</h3>
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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I think the answer is D) 24/25.
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