Math Knowledge
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The factors of x2 - 64 are
(X+8)(x-8)
The factors of x2 - 8xy + 15y are
(x - 5y) (х - 3У)
Which of the values of z would NOT satisfy 3 - z ≥ 7?
-10
If a = -5, then a2 - 9 =
-34
Which of the following expressions is equivalent to 5x - 4 - 8x + 10?
-3x + 6
Simplify 3x(-x2-x-1)
-3x3-x2-3x
Solve: -22 + 33 =
11
If x = 2, what is the value of 8x - x?
14
simplify 160 / 240
2/3
Which of the following expressions is equivalent to (3x)(4 + y) - 2.5x?
2x - 0.5xy
1/2+1/3+1/4
3/9
What is the value of x if 10 - 3x = 22?
32/3
Which of the following is an expression for "the sum of three times a number and -7 is equal to 9"?
3x + (-7) = 9
Simplify 32/7
4 4/7
If -2(2x - 11) = 3(x - 9), then x =
5
