Simplify: 4 - (3 + 1)2 - 6 ÷ 2 + 4 Combine like terms: 7x3 + 2x - 5x2 + 6 + x + 9 + 3x3 + 12x2 Simplify: (2x5 - 3x2 + 4) - (x5 +
2x2 + 7) Multiply: 3x2(4x3 - 2x2 + 7x - 4) Evaluate: 6x2 + 9x - 7, when x = 2 Evaluate: 3(x - y)2 + 4y - 6x + 2, when x = -1 and y = 3 Solve for x: 7x - 5 = 23 Solve for y: 7y - 4 + 3y + 6 = 9y + 8 Solve for w: 5(w - 2) + 6 = 3w - 14 Solve the following inequality for x. Then graph the solution on a number line: -4x + 2 < 2x - 6
2 answers:
Answer:
Step-by-step explanation:
4-(3+1)^2-6/2+4
4-4^2-3+4
4-16-3+4
-12-3+4
-15+4
-11
-------------------------
7x^3+2x-5x^2+6+x+9+3x^3+12x^2
10x^3-5x^2+12x^2+2x+x+6+9
10x^3+7x^2+3x+15
-------------------------------
3x^2(4x^3-2x^2+7x-4)
12x^5-6x^4+21x^3-12x^2
--------------------------------------
6x^2+9x-7 when x=2
6(2)^2+9(2)-7
6(4)+18-7
24+18-7
42-7
35
------------------------------
3(x-y)^2+4y-6x+2
3(-1-3)^2+4(3)-6(-1)+2
3(-4)^2+12+6+2
3(16)+12+8
48+12+8
68
------------------------------
7x-5=23
7x=23+5
7x=28
x=28/7
x=4
---------------
7y-4+3y+6=9y+8
10y-4+6=9y+8
10y-9y+2=8
y+2=8
y=8-2=6
y=6
--------------------------
5(w-2)+6=3w-14
5w-10+6=3w-14
5w-4=3w-14
5w-3w-4=-14
2w-4=-14
2w=-14+4
2w=-10
w=-10/2
w=-5
----------------------
-4x+2<2x-6
-4x-2x+2<-6
-6x+2<-6
-6x<-6-2
-6x<-8
6x<8
x<8/6
x<4/3
x>4/3
Answer:
x>4/3
Step-by-step explanation:
4-(3+1)^2-6/2+4
4-4^2-3+4
4-16-3+4
-12-3+4
-15+4
-11
-------------------------
7x^3+2x-5x^2+6+x+9+3x^3+12x^2
10x^3-5x^2+12x^2+2x+x+6+9
10x^3+7x^2+3x+15
-------------------------------
3x^2(4x^3-2x^2+7x-4)
12x^5-6x^4+21x^3-12x^2
--------------------------------------
6x^2+9x-7 when x=2
6(2)^2+9(2)-7
6(4)+18-7
24+18-7
42-7
35
------------------------------
3(x-y)^2+4y-6x+2
3(-1-3)^2+4(3)-6(-1)+2
3(-4)^2+12+6+2
3(16)+12+8
48+12+8
68
------------------------------
7x-5=23
7x=23+5
7x=28
x=28/7
x=4
---------------
7y-4+3y+6=9y+8
10y-4+6=9y+8
10y-9y+2=8
y+2=8
y=8-2=6
y=6
--------------------------
5(w-2)+6=3w-14
5w-10+6=3w-14
5w-4=3w-14
5w-3w-4=-14
2w-4=-14
2w=-14+4
2w=-10
w=-10/2
w=-5
----------------------
-4x+2<2x-6
-4x-2x+2<-6
-6x+2<-6
-6x<-6-2
-6x<-8
6x<8
x<8/6
x<4/3
x>4/3
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hope it helped if i didn't please write back and ill try my best for further explanation
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Answer:
10
Step-by-step explanation:
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