You use the substitution method simultaneously. He worked 9h at job A
It took 12 kg of rope to fill box A about how many kg of rope woulf it take to fill box B
1 answer:
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Answer:
+ 9x + 8 = 0
Step-by-step explanation:
First, we have to simplify this quadratic equation:
(x+2)^2 + 5(x+2) - 6 = 0
x^2 + 4x + 4 + 5x + 10 - 6 = 0
x^2 + 9x + 8 = 0