1+32+52=41... The brackets go around the first part like this -
(1+3)2+52=41 Because... 1+3=4 squared is 16, add that to 5 squared (25) equals 41.
x = 25 / 3squared + 5
Multiplication and division first, addition and subtraction second. Without brackets, that equation equals 2.
6x - 30 = 4x + 1 Subtract 4x + 1 from each side giving 2x - 31 = 0 so x = 15.5
(x - 6) (x + 4) = x2 - 2x - 24
42
x = 25 / 3squared + 5
Multiplication and division first, addition and subtraction second. Without brackets, that equation equals 2.
You can tell if an equation is a function if for any x value that you put into the function, you get only one y value. The equation you asked about is the equation of a line. It is a function.
2(2n + 5) = 12 2n + 5 = 6 2n = 1 n = 1/2
6x - 30 = 4x + 1 Subtract 4x + 1 from each side giving 2x - 31 = 0 so x = 15.5
17-8-(2+6) + 6(11-5) = 37
(x - 6) (x + 4) = x2 - 2x - 24
10g + 14 = 7g + 11 Subtract 7g from each side: 3g + 14 = 11 Subtract 14 from each side: 3g = -3 Divide each side by 3: g = -1
2048
In math problems without punctuation such as brackets, the standard convention in to solve from left to right. Therefore, you would solve the problem 15-3 times 4 plus nine like by three actions. 15-3 equals 12; 12 times 4 equals 48; 48 plus 9 equals 57.
42
[15 - (5 + 6)]*2 = [15 - 11]*2 = 4*2 = 8