f(x) = 5x^2 - 4x
g(x) = 5x + 1
Therefore f - g = 5x^2 - 4x - (5x + 1)
= 5x^2 - 4x - 5x -1
= 5x^2 -9x - 1
Hope it helps :)
(-7,8)
Simplifying 2(x+7)^2+8
Will give you the image results
You must graph the formula and you’ll get -7,8 (using desmos helps)
Three variable terms appear in this expression. Although 9xy has two variables, they combine to make one term.
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Like this answer? PM me for more awesome answers! - Boodle
Commercial jet's speed = 2x-162 (plug this in the equation below)
Private jet's speed = x
Equation:
10(x) = 8(2x-162)
10x = 16x - 1296
6x = 1296
x = 216 (Private jet's speed)
Take the first equation and plug x value in;
2x-162
2(216) - 162 = 270 ( Commercial jet's speed)
