PLEASE HELP ASAP!!!
Simplify the following expression.
(x+1)^2-3(x+2)
a. x^2-3x+7
b. x^2-x-5
c. x^2-3x-5
d. x^2-x+3
Simplify the following expression.
(5x^3y^-3)(-6x^4y)
a. -30x^7y^2
b. -30x^12y^3
c. -30x^12/y^3
d. -30x^7/y^2
Solve the following equation.
8+x/2 - x+3/3=4
a. x=-14
b. x=6
c. x=14
d. x=-6
Solve the equation.
x^2-3x-8=x+4
a. x=-6 or x=2
b. x=1+ sqrt5 or x=1- sqrt5
c. x=1+2sqrt3 or x=1-2sqrt3
d. x=-2 or x=6
Joseph is solving the equation x^2+8x-4=0 using the technique completing the square.
x^2+8x-4=0
x^2+8x+?=4+?
What number should Joseph add to both sides of the equation to complete the square, and why?
a. He should add 4 to both sides because 8/2=4.
b. He should add 4 to both sides because (4/2)^2=4.
c. He should add 16 to both sides because 16/2=8.
d. He should add 16 to both sides because (8/2)^2=16.
