Find the value or values of p in the quadratic equation p2+13p-30=0
Answers
Answer 1
Answer:
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factor
remember
if ab=0
assume that a and/or b=0
p^2+13p-30=0
fidn what 2 numbers add to 13 and multiply to -30
15 and -2
(p+15)(p-2)=0
set each to zero
p+15=0
p=-15
p-2=0
p=2
the roots are p=-15 and/or 2
factor
remember
if ab=0
assume that a and/or b=0
p^2+13p-30=0
fidn what 2 numbers add to 13 and multiply to -30
15 and -2
(p+15)(p-2)=0
set each to zero
p+15=0
p=-15
p-2=0
p=2
the roots are p=-15 and/or 2
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