Asked by Rose
2x^2+10x+7=0 factor this problem out
Answers
Answered by
Reiny
usually factors only contain rational numbers.
The roots of your equation are irrational, so there are no rational factors.
or
multiply the first times the last, 2 x 7 = 14
Are there any factors of 14 that add up to 10 ?
NO,
so there are no rational factors
or
evaluate the b^2-4ac of the quadratic equation formula
you would get 44
The √44 is irrational, so there are no rational factors.
The roots of your equation are irrational, so there are no rational factors.
or
multiply the first times the last, 2 x 7 = 14
Are there any factors of 14 that add up to 10 ?
NO,
so there are no rational factors
or
evaluate the b^2-4ac of the quadratic equation formula
you would get 44
The √44 is irrational, so there are no rational factors.
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