Here is a table for multiplication / division of positive/negative numbers. X/ + = + X/ - = - X/ + = - X/ - = + NB 'X/' means multiply or division. NNB If there is no sign in front of a number treat it as positive (+). e.g. 2 X 2 = 4 (Note ; no symbols, so it is treated as plus(+)) 2 X -2 = -4 -2 X 2 = -4 -2 x -2 = (+)4
-6
-2x2+32 -2(x2-16) -2(x+4)(x-4)
a negative times a positive is a negative so 2*-4=-8+10=2
x is negative 1x is negative 2
Let square = [x] -4+3*(-2)*[-4]+[3x-2x]=-4-6-2+[x]=-12+[x]The answer is negative 12 plus squared x.
negative read this : "MULTIPLICATION: minus times minus is plus (negative x negative = positive).....minus times plus is minus (negative x positive = negative).....plus times plus is plus (positive x positive = positive) DIVISION: minus divi minus is plus (negative ÷ negative = positive)......minus divi plus is minus (negative ÷ positive = negative).....plus divi plus is plus (positive ÷ positive = positive)"
Here is a table for multiplication / division of positive/negative numbers. X/ + = + X/ - = - X/ + = - X/ - = + NB 'X/' means multiply or division. NNB If there is no sign in front of a number treat it as positive (+). e.g. 2 X 2 = 4 (Note ; no symbols, so it is treated as plus(+)) 2 X -2 = -4 -2 X 2 = -4 -2 x -2 = (+)4
-6
-2x2+32 -2(x2-16) -2(x+4)(x-4)
a negative times a positive is a negative so 2*-4=-8+10=2
x is negative 1x is negative 2
x < 2 or x > 8.
First, solve for y.y=-8xif x=2, then y=-16.
2 x -2 - 3 x 3 + -1 = (2 x -2) - (3 x 3) + (-1) = -4 - 9 - 1 = -14.
(-6x+4)(x+5) -6x^2 +4x -30x +20 -6x^2 -26x + 20
x/(x + 4) = 4/(x + 4) + 2 (x - 4)/(x + 4) = 2 x - 4 = 2x + 8 -x = 12 x = -12