5 x 10-10 = 0.0000000005
(-6) x (-3) = 18 (-10) x (-9) = 90 18 - 90 = -72
(6 x 10-2) / (1 x 10-12) = 6 x 10(-2+12) = 6 x 1010
6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9
I presume the question is "what is 10 percent of minus 100"10% x -100 = -10
"10x - x" is basically 10 x's minus one x. The answer is 10 minus 1, but in terms of x. Since 10 minus 1 is 9, the answer is 9x.
x2-3x-10 = (x+2)(x-5) when factored
The expression is: 10-x
5 x 10-10 = 0.0000000005
(-6) x (-3) = 18 (-10) x (-9) = 90 18 - 90 = -72
(6 x 10-2) / (1 x 10-12) = 6 x 10(-2+12) = 6 x 1010
In addition and subtraction, if the plus sign is larger than the minus sign, then it's a plus. For example: +10 minus -20 = -10 If the plus sign is smaller than the minus sign, the answer will be a minus. For example: -10 minus + 20 = -10 In multiplication, if you have 2 plus signs, the answer will be a plus sign. If you have 2 minus signs, the answer will be a plus sign then, too. But if you have a plus and a minus sign, then the answer will be a minus. For example: +5 x + 2 = +10 -5 x - 2 = +10 -5 x +2 = -10
(-11) x (-10) + (-20) 110 + (-20) 90
x=-16
I presume the question is "what is 10 percent of minus 100"10% x -100 = -10
6 - x + 7 - 3x - 5 = -2x - 10 ∴ x + 3x - 2x = 6 + 7 - 5 + 10 ∴ 2x = 18 ∴ x = 9
x2-2x-10-5 = 0 x2-2x-15 = 0 (x+3)(x-5) = 0 x = -3 or x = 5