4x * x = 4x^2
Chat with our AI personalities
Four times a number x equals 4x.
x = number Four times the number (4x) is the same as the number increased by 78 (x + 78). Since they are both equal, then 4x = x + 78 4x - x = 78 3x = 78 x = 26
4x
She isn't. 4x squared is 4 times (x squared). That is, 4 times (3 squared) = 4 times 9. If you want it to be the square of 4x (which would be the square of 4 times 3, ie, 12), you have to write it as (4x)squared.
Let's represent the # with x 4x-8=8(x+2) 4x-8=8x+16 4x-8x=16+8 -4x=24 x=24/-4 x=-6 The number is -6