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3 years ago

Which of the following is a factor of x2 − 8x + 15?

Mathematics

2 answers:

IrinaVladis [17]3 years ago

5 0

Answer:

x+5

Step-by-step explanation:

edge

brilliants [131]3 years ago

3 0

Answer:

(x−3)(x−5)

Step-by-step explanation:

Let's factor x2−8x+15

x2−8x+15

The middle number is -8 and the last number is 15.

Factoring means we want something like

(x+_)(x+_)

Which numbers go in the blanks?

We need two numbers that...

Add together to get -8

Multiply together to get 15

Can you think of the two numbers?

Try -3 and -5:

-3+-5 = -8

-3*-5 = 15

Fill in the blanks in

(x+_)(x+_)

with -3 and -5 to get...

(x-3)(x-5)

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nata0808 [166]

Answer:

Step-by-step explanation:

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