Answer:
-2x^2 +16x -8
Step-by-step explanation:
Oh s-
Like terms i guess Same variable you can substract. Remember you only substract from 1 number not from all.
-2x^2 stays the same as there is no like term
9x - (-7x)
-2 - (6)
-2x^2 + 9x+ 7x -2-6
-2x^2 +16x -8
Answer:
Step-by-step explanation:
by putting 4=6/ax+5
Assuming the exponent is supposed to be "^2" your equation will read:
4x² + 8x - 5
It must set equal to y to be a valid function and the y must be set equal to zero to find x-intercepts.
4x² + 8x - 5 = 0
4x² - 2x + 10x - 5 = 0
2x(2x - 1) + 5(2x - 1) = 0
(2x + 5)(2x - 1) = 0
Set each binomial equal to zero.
2x + 5 = 0
2x = 0 - 5
2x = - 5
Divide both sides by 2
x = - 5/2
2x - 1 = 0
2x = 0 + 1
2x = 1
x = 1/2
Your x-intercepts are x = - 5/2, 1/2 or (- 5/2, 0) and (1/2, 0)
Answer:
80
Step-by-step explanation:
70 + 30 = 100
180 - 100 = 80
Step-by-step explanation:
u should:
7t = t + 48 » 7t - t = 48 » 6t = 48 » t = 8
and another one is:
2u + t + 13 = 10t + u - 44» 2u + 8 + 13 = 80 + u - 44»
» 2u + 21 = u + 36 » 2u - u = 36 - 21 » u = 15
