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3 years ago

Please help fan and medal whatever you want. What are the factors of x2 − 81?

2 answers:

4 0

X^2-81
(x+9)(x-9)
x*x=x^2
x*-9= -9x
x*+9= 9x
^^^ These last two cancel each other out
+9*-9 = -81 (neg times pos is neg)
Left with (x^2-81)

I used * as a multiplication sign because an x is confusing when x is your variable
Look up the Box Method- It makes factoring easier!

Bas_tet [7]3 years ago

3 0

$x^2-81=(x-9)(x+9)$

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3 years ago

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Mashutka [201]

The slope of line passing through the points (4, 4) and (10, 7) is $\frac{1}{2}$

<em><u>Solution:</u></em>

Given that, we have to find the slope of line that passes through the points (4, 4) and (10, 7)

The slope of line passing through $(x_1 , y_1)$ and $(x_2, y_2)$ is given as:

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$\text{ Here } x_1 = 4 ; y_1 = 4; x_2 = 10; y_2 = 7$

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Type the answers in the boxes below.

Vaselesa [24]

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