4.5 x 2 = 9
It is 100*x2
2 x 2 = 4
x2+5y+4 (i have no idea but)x2+5x+4 = (x+4)(x+1)
(x + 4) (x - 4) = x2 - 16To work this out you need to multiply each term in the first bracket by each term in the second bracket.So you would do x times x which gives you x2.Then x times -4 which is -4x.Then 4 times x which 4x. (Note: this 4x will cancel out the -4x)And finally 4 times -4 which is -16.So you end up with x2 - 4x + 4x - 16 which equals x2 - 16.
Quantity x+4 times quantity x+1.
They are 4 terms of an expression that can be simplified to: 4 -15x^2
x(x+4) equals x2 plus 4x
Yes. x2 + 4 = ( x + 2i ) times ( x - 2i ) where 'i' = the unit imaginary number = the square root of -1.
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).
the awnser is 18.. i think..
x2(x-4)
x2 × 2x = 2x3