Quadratic is in the form
ax^2+bx+c=0
so distribute and stuff and simplify
remember
a(b+c)=ab+ac
(x+2)^2+5(x+2)-6=0
remember order of opertaions
(x+2)(x+2)+5(x+2)-6=0
x^2+4x+4+5x+10-6=0
add like terms
x^2+9x+8=0
The answer is .4x because -3.4x+3.8x
410/20 * 75 = 1537.5 miles.
D
This is because the expression can be simplified to get the same result. -1+2log_4((1/4)x)
