Generally, the derivative to a linear equation (in the form "ax + b") is the constant that is being multiplied by x (in "ax + b", this would be "a"). This is because a derivative gives the slope of a function, and the slope of a linear function is the coefficient next to x. So, in this case, (7x)' = 7.
14x
21 X squared over 5
7x - 4 = 60 7x = 64 x = 9.14
(21x3-23x2-76x-32)/(7x+4) = [3x2(7x4) -5x(7x+4)-8(7x+4)]/(7x+4)=3x2-5x-8
It is -2*(3x2 - 7)*(x3 - 7x)-3
(7x - 4)(7x + 4).
Generally, the derivative to a linear equation (in the form "ax + b") is the constant that is being multiplied by x (in "ax + b", this would be "a"). This is because a derivative gives the slope of a function, and the slope of a linear function is the coefficient next to x. So, in this case, (7x)' = 7.
14x
21 X squared over 5
7x - 4 = 60 7x = 64 x = 9.14
5x+4+7x
7x + y = 4y = 4 - 7x
(21x3-23x2-76x-32)/(7x+4) = [3x2(7x4) -5x(7x+4)-8(7x+4)]/(7x+4)=3x2-5x-8
7x-4=x+2 7x=x+2+4 7x=x+6 7x-x=6 6x=6 X=1
-7x + 6 + 7x - 2 = 4
7x + 2 = -4 7x + 2 - 2 = -4 - 2 7x = -6 7x/7 = -6/7 x = -6/7