Answer:
3
Step-by-step explanation:
I got it wrong so then it told me what the correct answer was:)
Answer:
f(x) crosses the x-axis, then
f(x)=(x+4)^6(x+7)^5 = 0
=> x+4 =0 or x+7=0
=> x =-4 or x = -7
4x=3y+3 and 6y=8x+36 have parallel lines.
See attached result.
4x²=16
x²=16/4
x²=4
√(x²)=+/-√4
x(1) =2, x(2)=-2