2x squared minus 4
If you mean: (2x-7y)(x+y) then it is 2x squared -5xy -7y squared
2x(2x - 1)
No.
No.
2x squared can best be describe as some variable being double and then squared.
2x -2 squared = 0
Oh, dude, you're hitting me with some math now? Okay, so x squared times 2x squared is like multiplying the coefficients and adding the exponents, so it's 2 times 1 times x to the power of 2 plus 2, which simplifies to 2x to the power of 4. Easy peasy lemon squeezy!
The GCF is 2x.
2x squared minus 4
-x2+2x
When you subtract 7x^2 from 5x^2, you get -2x^2.
2
2x2 + 2x = 2x(x+1)
3x squared - x squared = 2x squared
15
7x2 -4x -5x2 +2x = 2x2 -2x