15 +26+9+12
-26
It depends where you want the parentheses: 15 + (26 x 10) = 275 (15 + 26) x 10 = 410
it would be -1
If that is: 15+(26-6)*(7-84) then it works out as -1525
15x26=390
n + 26 = 41 n = 41 - 26 n = 15 Thanks
9/26 + 3/13 = 195/338 which reduces to 15/26
26 + 26 + 26 + 26 = 4 x 26 = 104
It equals 285
x2 + 15x = -26x2 + 15x + 26 = -26 + 26x2 + 15x + 26 = 0 where a = 1, b = 15, and c = 26x = [-15 ± √(152 - 4(1)(26))]/2(1)x = (-15 ± √121)/2x = (-15 ± 11)/2x = (-15 + 11)/2 = -4/2 = -2 or x = (-15 - 11)/2 = -26/2 = -13
-15 + 19 + (-26) + 11 = -41 + 30 = -11