If you have an equation of x2 plus x2, it is the same as saying 2 times x plus 2 times x. This can be written as 2x + 2x or x2 + x2. It is the same, then, as 4x. For example, if x equals 5: 2(5) + 2(5) = 10 + 10 = 20. 20 also equals 4(5).
x2 + x2 + x2 = (1 + 1 + 1)x2 = 3x2
x2 + x2 = 2x2
3x4 plus 5x3 plus x2 - 5 divided by x 2 =[(3x4) + (5x3) + (x2 - 5)]/x2 =(12 + 15 + x2 -5)/x2 =(27 - 5 + x2)/x2 =(22 + x2)/x2
x2 + 48x + 320
x2 + x2 = 2x2
Do you mean x2+7x+12? If so then it is: (x+3)(x+4)
Assuming you mean x squared plus 5x squared... the answer is 6x squared.
If by "what is the answer to" you mean "how do you factor", then the answer is as follows: x2 + 52x + 100 = x2 + 50x + 2x + 100 = x(x + 50) + 2(x + 50) = (x + 2)(x + 50)
x4 +x2 =x2 (x2+1)
If by "What is the answer to", you mean "How do you factor", then we can solve it as follows: x2 + 13xy + 36y2 = x2 + 4xy + 9xy + 36y2 = x(x + 4y) + 9y(x + 4y) = (x + 9y)(x + 4y)
4x2 + x2 = 8 + x2
x3 + x2 + 4x + 4 = (x2 + 4)(x + 1)