Question

x square - 3x - 10 factories ​

Answer 1

Answer:

x

2

−

3

x

−

10

=

(

x

−

5

)

(

x

+

2

)

Explanation:

Given:

x

2

−

3

x

−

10

Find a pair of factors of

10

which differ by

3

.

The pair

5

,

2

works in that

5

⋅

2

=

10

and

5

−

2

=

3

Hence we find:

x

2

−

3

x

−

10

=

(

x

−

5

)

(

x

+

2

)

Answer 2

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