Asked by Josh
Fator the trinomial:
4) 2
p + 10p +25
6) 2
y - 5y -24
8) 2
n + 2n -48
10) 2
y + 17y + 72 = 0
12) 2
w - 13w + 42 = 0
4) 2
p + 10p +25
6) 2
y - 5y -24
8) 2
n + 2n -48
10) 2
y + 17y + 72 = 0
12) 2
w - 13w + 42 = 0
Answers
Answered by
Reiny
I will do one of them, the others are done the same way
12)
I will assume you meant w^2 - 13w + 42 = 0
Can you think of two numbers which when multiplied yield 42 , and which when added yield -13 ?
how about - 6 and -7 ??
so
x^2 - 13w + 42 = 0
(w-6)(w-7) = 0
check by expanding the answer.
12)
I will assume you meant w^2 - 13w + 42 = 0
Can you think of two numbers which when multiplied yield 42 , and which when added yield -13 ?
how about - 6 and -7 ??
so
x^2 - 13w + 42 = 0
(w-6)(w-7) = 0
check by expanding the answer.
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