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Pie
3 years ago
11

Factor: x2 + x - 90

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
7 0

The factor is : (x+10)(x-9)

Step-by-step explanation:

Given,

x^{2} +x-90

To find the factors.

We apply middle term factor rule.

x^{2} +x-90

= x^{2} +(10-9)x -90 [ 90 = 10×9]

= x^{2} +10x-9x-90

= x(x+10)-9(x+10)

= (x+10)(x-9)

Hence,

The factor is : (x+10)(x-9)

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