a=-2 b=5 c=-4 d=6
question is
b^2-2bc+c^2
see if i did the steps right please
(5^2)-(2*5*-4)+(-4^2)
(5^2)-(10*-4)+(-4^2)
(5^2)-(-40)+(-4^2)
5^2-(-40)-4^2
25-(-40)-4^2
25+40-4^2
25+40-16
65-16
49
No. Minus four squred is positive sixteen.
eighty percent of 280 is what number?
draw a diagram of the problem
4 answers
23
2/3 (7/8 - 4x) - 5/8 = 3/8
multiply 2/3 by 7/8 - 4x
2/3 x 7/8 = 7/12
2/3 x -4x = -8/3x
7/12 - 8/3x - 5/8
-1/24 - 8/3x = 3/8
add -1/24 to both sides
-8/3x = 3/8 + 1/24
-8/3x = 5/12
x = 5/12 / -8/3
x = -15/96 or
answer: x = -5/32
multiply 2/3 by 7/8 - 4x
2/3 x 7/8 = 7/12
2/3 x -4x = -8/3x
7/12 - 8/3x - 5/8
-1/24 - 8/3x = 3/8
add -1/24 to both sides
-8/3x = 3/8 + 1/24
-8/3x = 5/12
x = 5/12 / -8/3
x = -15/96 or
answer: x = -5/32
9x-6=30
2x-3y=14 2x+y=-10