Answer:
235
Step-by-step explanation:
42+1
43
3 times 43
129
129 times 2
258
258-23
235
I always prefer factoring, if there are simple factors.
There are simple factors here.
x² + 11x + 18 = 0
(x + 2) (x + 9) = 0
The left side is zero if either factor is zero.
First factor:
x + 2 = 0
<u>x = -2</u>
Second factor:
x + 9 = 0
<u>x = -9 </u>
Answer:
66
Step-by-step explanation:
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Answer:
b
Step-by-step explanation:
12x+2y=112
6x+y=56
6x=56-y
x=(56-y)/6
y=(56-6x)