x2 + 8x + 5 = 0 is an expression, not a value, and thus does not actually have a square root. If you are looking to solve for x, then you can say:
x2 + 8x + 5 = 0
∴ x2 + 8x + 16 = 11
∴ (x + 4)2 = 11
∴ x + 4 = ±√11
∴ x = 4 ±√11
15
15*15=225
True! Apex =)
sqrt(15) + sqrt(25) = 5 + sqrt(15) = 8.873 (using principal roots only).
You are looking for the square root of 225 which is 15. (15x15=225)
4.7916427e+21
The square root of 225 is 15. This is because the square root of a number is a value that, when multiplied by itself, gives the original number. In this case, 15 multiplied by 15 equals 225. Therefore, the square root of 225 is 15.
25x (square) plus 40 plus 15 equals 680.
15
It is irrational
The square root of 15 times the square root of 5 can be simplified as the square root of (15 * 5), which equals the square root of 75. The square root of 75 can be further simplified as 5 times the square root of 3. Therefore, the square root of 15 times the square root of 5 is equivalent to 5 times the square root of 3.
15*15=225
x = 3
True! Apex =)
sqrt(15) + sqrt(25) = 5 + sqrt(15) = 8.873 (using principal roots only).
15
x²+2x-15=0 x1=-2/2 - Square root of ((2/2)²+15) x1=-1-4 x1=-5 x2=-2/2 + Square root of ((2/2)²+15) x2=-1+4 x2=3