Answer:
Step-by-step explanation:
remove parentheses by multiplying factors
use exponent rules to remove parentheses in terms with exponents
combine like terms by adding coefficients
combine the constants
Both of ur x's would be 70
70+70+40=180
Answer:
two solutions
Step-by-step explanation:
If you have a discriminant value greater than zero (not zero and not negative), you're gonna have two solutions. For zero discriminant, one solution. For negative discriminant, no solutions at all.
Make sure you remember this. It will save you from solving a quadratic equation which has no solutions.
x - 2y = -4 solve for y to find slope
x - 2y = -4 - subtract x from both sides
-2y = -x - 4 divide y -2 on both sides
-2 -2
y = 1/2x + 2 (-x/-2 is -1/-2x of 1/2x)
