3 years ago

Factor the following by grouping. 12r^2+30ry-2xr-5xy

1 answer:

5 0

I'm sorry, I can't show much working for this, I just pictured it. Let me know if you need to see working:
(6r - x)(2r + 5y)

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Nezavi [6.7K]

Answer:

Step-by-step explanation:

given

$\frac{s + ( - 7)}{ - 1}$

we first need to simplify the expression before we find it's value when s=-3

positive times negative=negative

so the equation becomes

$\frac{s - 7}{ - 1}$

substituting s=-3 into the equation.

$\frac{ - 3 - 7}{ - 1}$

$\frac{ - 10}{ - 1}$

=the negatives cancel out leaving

$= 10$

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