9 squared is 9 x 9 or 81.
9 squared is 81 and 16 squared is 256
-9 squared = 81(-9)^2 = (-9) * (-9) = 81
9 squared (or 92) = 9 x 9
This is equivalent to (x + 3)2 = (x + 2)2 + 9. Multiplied out this is x2 + 6x + 9 = x2 + 4x + 4 + 9. Deduct x2 + 4x + 9 from each side giving 2x = 4 So x = 2 Check: (2 + 3) squared = 25 which is 9 more than (2 + 2) squared = 16.
10
9 squared is 81 and 16 squared is 256
x^2 +8x -9 is equivalent to (x+9)(x-1) when factored
lokiya said: 9 squared is equal to 81
6 squared plus 9 squared is equal to 117.
When you square a number, you multiply it by itself. So, 9 squared means 9 multiplied by 9, which equals 81. In mathematical notation, 9 squared is written as 9^2 or 9 x 9.
The expression "-9 squared" means to multiply -9 by itself. When you calculate this, you get ((-9) \times (-9) = 81). Therefore, -9 squared equals 81.
-9 squared = 81(-9)^2 = (-9) * (-9) = 81
9 squared (or 92) = 9 x 9
To work out 9 squared, you multiply 9 by itself. This means calculating (9 \times 9), which equals 81. Therefore, 9 squared is 81.
This is equivalent to (x + 3)2 = (x + 2)2 + 9. Multiplied out this is x2 + 6x + 9 = x2 + 4x + 4 + 9. Deduct x2 + 4x + 9 from each side giving 2x = 4 So x = 2 Check: (2 + 3) squared = 25 which is 9 more than (2 + 2) squared = 16.
92 = 9 x 9 = 81
3 squared is equal to 9