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OpenStudy (anonymous):
use factoring to find the zeros of y=x^2+11x+28
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OpenStudy (amistre64):
factoring tends to be more art than science
OpenStudy (amistre64):
+28, we have like signs +11 those signs are positive (x+ )(x+ ) factors of 28 that add to 11? 1+28, nope 2+14; nope 4+7 .... looks fine to me (x+4)(x+7)
OpenStudy (anonymous):
thankyou!
OpenStudy (amistre64):
yw, hope it was useful
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