60 !
parabola question. only answer if you know 100% your answer is correct. seriously.

If square root x = -7, then x= -49 true or false

[15 points]find the least common multiple of the expressions: 1. 3x^2, 6x - 18 2. 5x, 5x(x +2) 3. x^2 - 9, x + 3 4. x^2 - 3x - 10, x + 2 explain if possible

Rationalize the denominator- 12x/√x-10