5+5-2
9-9+8
10-1-1
0+0+8
-8+8+8
9+9-10
10-6+4
There are four mentions of parenthesis is the question. Since they must come in pairs, there are two possible scenarios. Scenario I: The parentheses are nested 7(1+4(-8)-5x+8) > 79 7(1-32-5x+8) > 79 7(-23-5x) > 79 -23-5x > 79/7 = 11.286 -5x > 34.286 x < 34.286/5 = 6.857 Scenario II: The parentheses are separate 7(1+4)-8(-5x+8)>79 7*5+40x-64 > 79 35+40x-64 > 79 40x = 108 x > 2.7
y=3x(x+7)^2
(3x4+5+6+7)/10=3
(a^2+7a-8)/(a^2+6a-7) (original equation) (a+8)(a-1)/(a+7)(a-1) (simplify top and bottom) (a+8)/(a+7) <--answer
Using pemdas, the subtraction and addition happen at the same time. If there are no parenthesis, then you just go from right to left. 8-5=3 3+4=7 So 7 is your answer.
7a=2(-10)........................................answer is 20/7
-700
Prior to Excel 2007, the maximum was 7. From Excel 2007, the limit has been raised to 64. However, it becomes very impractical using too many nested IFs, so it is better to look for other ways where it is possible, like breaking down your formulas or using a lookup function, like VLOOKUP.
13/21 - 7/21 = 6/21 Sorry, DJ, 4 over 7 = 12/21 so answer is 5/21
49/16 = (7^2)/(4^2) = (7/4)^2 = ((4/7)^-1)^2 = (4/7)^-2 Thus as (4/7)^2 = 49/16 and 49/16 = (4/7)^-2 (4/7)^x = (4/7)^-2 Therefore x = -2.
x(x-5) = 14First distribute the first x.x2 -5x = 14Set = to 0x2 - 5x -14 = 0Factor(x-7)(x+2) = 0Set each term = to 0x-7 = 0x+2 = 0X = -2 and 7
If there are no parenthesis then -9+9/7*7=0 as 0/49 =0