Yes, x times x equals x squared.
yes
x cubed
x times the sum of x and 9 x times (x times 9) x(9x) 9 times x[squared] 9x[squared]
5(x^2 + y)
Yes, x times x equals x squared.
16 to the 4th power, or 16 x 16 x 16 x 16 = 65,536
No. Cos squared x is not the same as cos x squared. Cos squared x means cos (x) times cos (x) Cos x squared means cos (x squared)
yes
x squared means x times x. Since x can be any number, x times x can also be any number.
x cubed
x cubed, or x³
x2 + 8x2 = 9x2
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!
x times the sum of x and 9 x times (x times 9) x(9x) 9 times x[squared] 9x[squared]
No. x squared is x times x, whereas 2x is x + x.
It is: -x squared