Step-by-step explanation:
how could we get 30x^2?
6x × 5x
<em>so</em><em>,</em>
x^2 +6x+5x+30=0
x (x+6) +5 (x+6)=0
(x+6)(x+5)=0
(x+6)=0/(x+5)=0
x=-6 or x=-5
Answer: -2
Step-by-step explanation:
Answer:
A and B are functions
Step-by-step explanation:
for A, none of the x's repeat which makes it a FUNCTION
for B, when it starts with x^2, it will always be a FUNCTION (its a quadratic)
for C, 10 repeats for the x so it is NOT A FUNCTION