Find the sum of the polynomials below.

Mathematics

2 answers:

lisabon 2012 [21]3 years ago

5 0

The answer is C 11x8+5x+2

bazaltina [42]3 years ago

4 0

Tha answer should be choice c

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Factor: (m+2)^2−(m+2)+mn·(n+2)+2n(n+2)

bazaltina [42]

ANSWER
${(m + 2)}( {n}^{2} + 2n + m + 1)$

EXPLANATION

The given expression is

${(m + 2)}^{2} - (m + 2) + mn(n + 2) + 2n(n + 2)$

We factor to get,

$= {(m + 2)}(m + 2 - 1) +n (n + 2) (m+ 2)$

This implies that,

$= {(m + 2)}(m + 1) +n (n + 2) (m+ 2)$

We factor further to obtain,

$= {(m + 2)}((m + 1) +n (n + 2))$

or

$= {(m + 2)}( {n}^{2} + 2n + m + 1)$

5 0

3 years ago

What is the square root of √64/25 A) 8/5 B) -8/5 C) ±8/5 D) ±320/125

horsena [70]

Answer:

C) ±8/5

Step-by-step explanation:

Both the numerator and the denominator are positive squares (8 is the square root of 64, and 5 is the square root of 25). Finding the square root of both the numerator and the denominator will yield the simplified fraction ±8/5.

Remember: the square roots of a positive square are always both positive and negative. The square root of $\sqrt{4}$ is 2 ( $2^{2} =4$ ) and -2 ( $-2^{2} =4$ )