Given that a number has two square roots, a + 3 and 2A - 15, find the number | Math enthusiast | Mathematical art

Given that a number has two square roots, a + 3 and 2A - 15, find the number

From the meaning of the question: a + 3 + (2a-15) = 0, the solution: a = 4. This number is: (a + 3) 2 = 72 = 49. So this number is 49

RELATED INFORMATIONS

1. 5 of 18 * 7 + 8 of 38 * 21-2 of 7 * 18 + 1 of 21 * 38
2. If x satisfies 2 / 3 [3 / 2 (x / 4-1) - 2] - x = 2, then does x have a square root? Does X have a cube root? If so, find out the reason separately It's better to be more detailed. It's urgent
3. Simple calculation of 8 out of 21 times 25 out of 18 times 63
4. Write the program of "input a positive integer m, judge whether it is prime" in C language
5. Find a point P on the straight line 3x-2y + 6 = 0 so that the distance from it to a (- 1,1) and B (3,0) is equal
6. Point a (- 1, - 2), B (3,6), find point P (x, y) on the straight line L: 3x + 3y-10 = 0, so that the distance difference between point 1 P and point a, B is the largest Answer (- 101 / 6121 / 6) detailed process
7. Coordinate origin to line 3x-2y + 1 = 0 to distance
8. Find a point P on the line x + 2Y = 0 so that its distance to the origin is equal to the distance of the line x + 2y-3 = 0
9. The distance from the origin to the line x + 2y-5 = 0 is___ ．
10. Given 2x + 3y-4z = 0, 3x + 3Y + 5Z = 0, find the value of X + y + X / X-Y + Z
11. 321 × 46-92 × 27-67 × 46 simple operation
12. Let a and B satisfy the square root of 2A + 8 + | B-3 | = 0 and solve the equation about X
13. How to calculate 321-198 simply The first one,
14. When X -- the square root of 2X-4 denotes the arithmetic square root of 2X-4
15. The least common multiple and the greatest common factor of 87 and 38, 44 and 28
16. The distance from the number axis to the origin is less than 100 and represents the value of integers. The product of their corresponding numbers is
17. The greatest common factor and the least common multiple of 26 and 97
18. On the number axis, the number of integer points whose distance from the origin is less than 2, the number of positive integer points which are not more than 2 is y, and the number of integer points which are equal to 2 is Z. find the value of X + y + Z
19. There are four numbers a, B, C and D. the least common multiple of AB is 120 and the least common multiple of CD is 160?
20. On the number axis, the number of integer points whose distance from the origin is less than 2 is a, the number of integers whose distance from the origin is not more than 2 is B, and the number of integers whose distance from the origin is equal to 3 is C. find the value of a + B + C Please explain