(26/13) (-7) + 14 - 4
2(-7) + 14 - 4
-14 + 14 - 4
-4
Answer:
y = x² - 3x - 28
Step-by-step explanation:
given a parabola with x- intercepts x = a and x = b , then
(x - a) and (x - b) are the corresponding factors and the equation is the product of its factors
y = (x - a)(x - b)
here the x- intercepts are x = - 4 and x = 7 , then the factors are
(x - (- 4)) and (x - 7) , that is (x + 4) and (x - 7) , then
y = (x + 4)(x - 7) ← expand using FOIL , then
y = x² - 3x - 28 ← in standard form
B+133=180
b=47
and 80+a+b=180
80+a+47=180
a=180-127
a=53
(x-5) = 0 or (x+2)=0
so x could be 5 or -2
i guess, u can check it with calculator
-2 * (2x - y) / 3y - 5x
I don't really know how to explain it but this is the answer to wh<span>at expression is equivalent to (2/x-4/y)/(-5/y+3/x)</span>