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3 years ago

Determine which polynomial is a perfect square trinomial.

Mathematics

2 answers:

max2010maxim [7]3 years ago

4 0

Answer:

D) 16x^2 − 56x + 49

Step-by-step explanation:

It is 16x^2 - 56x + 49

(4x)^2 - 2*4x*7 + 7^2

This is in the form of (a - b)^2 = a^2 - 2ab + b^2

Here a = 4x and b = 7

(4x)^2 - 2*4x*7 + 7^2 = (4x - 7)^2

Therefore, answer is D) 16x^2 − 56x + 49

Hope this will helpful.

Thank you.

Sholpan [36]3 years ago

3 0

$\it 16x^2-56x+49 = 4^2x^2-56x+7^2=(4x-7)^2$

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Which expression is equivalent to (5^-2)(5^-1) A. -1/125 B. -1/5 C. 1/125 D. 1/5

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Answer:

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Answer:

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Step-by-step explanation:

Given

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Required

The explicit formula

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So, the nth term is:

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Open bracket

$a_n = -25-14n + 14$

Collect like terms

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2 years ago

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3 years ago