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13. Factor5x2 + 37x+14(5x+ 2)(x-7)(x + 2X5x + 7)(5x+7)(x-2)(x + 7X5x + 2)

13. Factor5x2 + 37x+14(5x+ 2)(x-7)(x + 2X5x + 7)(5x+7)(x-2)(x + 7X5x + 2)-example-1
User Tanathos
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1 Answer

17 votes
17 votes

(x+7)(5x +2)

1) Let's factor the following expression 5x² +37x +14.

Checking the coefficients a =5, b= 37 and c= 14

Since a is different than 1 then we need another procedure.

2) We need to multiply a by c = 5 x 14 = 70 and look at b= 37.

Which are two numbers whose sum is 37 and their product is 70?

35 +2, and 35 x 2

Let's rewrite the whole expression, replacing it

5x² + 35x +2x +14 Instead of 37x write 35x +2x

5x² + 35x +2x +14 Group these terms

5x(x+7) +2(x+7) As we can see there's repetition so

(5x +2)(x+7)

3) Hence, the answer is 5x² +37x +14 = (5x +2)(x+7) or (x+7)(5x+2)

User ZygD
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