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3 years ago

7

john can play 12songs on the guitar and he learns 1 new song each week. Aiden can play 4 songs but he learns 2 each week. How ma

ny weeks will it be before aiden knows as many songs as john?

1 answer:

Margarita [4]3 years ago

4 0

4 weeks if John doesn't learn anymore new songs but if he continues to learn one new song per week by week 8 John and Aiden will both be at 20 songs

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Answer:

Solving the equation $x^2+6x-8=0$ by completing the square method we get $\mathbf{(x+3)^2=17}$

Option B is correct option.

Step-by-step explanation:

We need to solve the equation $x^2+6x-8=0$ by completing the square method.

For completing the square method: we need to follow: $a^2+2ab+b^2=(a+b)^2$

We are given:

$x^2+6x-8=0$

Solving by completing the square

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So, adding and subtracting (3)^2

$x^2+2(x)(3)+(3)^2-8-(3)^2=0\\(x+3)^2-8-9=0\\(x+3)^2-17=0\\(x+3)^2=17$

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2 years ago

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