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nevsk [136]
3 years ago
12

Factor Quadratics

Mathematics
1 answer:
lawyer [7]3 years ago
3 0

Answer:

Let's factor x2+3x−18

x2+3x−18

The middle number is 3 and the last number is -18.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get 3

Multiply together to get -18

Can you think of the two numbers?

Try -3 and 6:

-3+6 = 3

-3*6 = -18

Fill in the blanks in

(x+_)(x+_)

with -3 and 6 to get...

(x-3)(x+6)

Answer:

(x−3)(x+6)

Step-by-step explanation:

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Now that we have the value of x, plug it into either equation to solve for y:

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What should be done to solve the equation? x+14=21 Add 14 to both sides of the equation. Subtract 14 from the left side of the e
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Step-by-step explanation:

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