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3 years ago

Explain how to get the variable alone in each question k-13=29

Mathematics

2 answers:

nadya68 [22]3 years ago

7 0

Add 13 to both sides, which leaves you with k=42.

KonstantinChe [14]3 years ago

3 0

k - 13 = 29

Take - 13 to the other side to get k alone.

The sign will flip and it becomes + 13.

K = 29 + 13

k = 42

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3 years ago

Read 2 more answers

If x+a is a factor of 2x²+2ax+5x+10,find a.

vazorg [7]

If $x+a$ is a factor of the polynomial, it means that $-a$ is a root of the polynomial.

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In your case, you know that the polynomial is divisible by $(x+a)=(x-(-a))$ , so $-a$ is a solution.

Let's evaluate $p(-a)$ and set it to zero:

$2(-a)^2+2a(-a)+5(-a)+10 = 0 \iff 2a^2-2a^2-5a+10=0 \iff -5a+10 = 0 \iff a = 2$

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And we're claiming that $-a=-2$ is a root of this polynomial:

$2(-2)^2+9(-2)+10 = 2\cdot 4 - 18 + 10 = 0$

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Answer:

Answer below hopes it helps

Step-by-step explanation:

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