x(x-5) = 14
First distribute the first x.
x2 -5x = 14
Set = to 0
x2 - 5x -14 = 0
Factor
(x-7)(x+2) = 0
Set each term = to 0
x-7 = 0
x+2 = 0
X = -2 and 7
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To perform the multiplication of (x + 4)(x + 5), you need to use the distributive property. This means you multiply each term in the first parenthesis by each term in the second parenthesis. (x + 4)(x + 5) = xx + x5 + 4x + 45 Simplify this further to get x^2 + 5x + 4x + 20, which simplifies to x^2 + 9x + 20.
To find what x5 equals 125, you can set up the equation 5x = 125. To solve for x, divide both sides by 5: x = 125 / 5 = 25. Therefore, x5 equals 125 when x is equal to 25.
x = 14
y + 12 = -3(x - 2) y + 12 = -3x + 6 y = -3x - 6 or y = -3(x + 2)
-2(x+4) = -2x-8