You can only add like terms
exg
you can addd
2+4
2x+4x
2x^2+4x^2
2x^3+4x^3
but not
2+4x
2x^2+2x^3
so when adding like terms keep the exponent
4x+2x=6x
4x^3+2x^3=6x^3
(7x^2+4x-7)+(4x^2-6x+4)
get rid of the parenthasees
7x^2+4x-7+4x^2-6x+4
group like terms (x^2 with x^2 x with x, etc)
(7x^2+4x^2)+(4x-6x)+(-7+4)
add like terms
11x^2-2x-3
Answer:
Slope: 0, y-intercept: -1
Step-by-step explanation:
If a line is completely horizontal, the slope is 0. The equation of this line is:
y = 0x - 1 = -1
The slope is 0 and the y-intercept is -1 because that is the y-coordinate this line intercepts with.
Hope this helps!
The answer is 90, 25, 155, 115 respectively
Algebra 1 is a high school course. You learn some of the same things but in algebra it's more complicated.
Answer:
B
Step-by-step explanation:
