(x+3)(x+3) = x^2 -3 + 3x
x^2 + 3x + 3x + 9 = x^2 + 3x - 3
x^2 + 6x + 9 = x^2 + 3x - 3
6x + 9 = 3x - 3
3x + 9 = -3
3x = -12
x = -4
Check:
(-4+3)^2 = (-4)^2 - 3(1+4)
(-1)^2 = 16 - 3(5)
1 = 16-15
1 = 1 :)
It remain equal due to law of conservation of momentum
Answer:
That's the answer
Only 
is a perfect square trinomial
Answer:
(x+2)(x-5)
Step-by-step explanation:
If it is a quadratic equation as I think it is, else there is no sense, it's possible to see that we need two numbers in such a way its multiplication is -10 and its sum -3 . The only two natural numbers are +2 and -5, therefore the correct factorization is (x+2)(x-5).
