what is 7x to the third power + 6x to the second - 2
Let the number be x: 7x-6 = -20 7x = -20+6 7x = -14 x = -2
7x-4=x+2 7x=x+2+4 7x=x+6 7x-x=6 6x=6 X=1
2 to the power 0 or 20 is equal to 1
Oh, what a happy little math problem we have here! When you multiply 7x squared by x squared, you simply add the exponents together, giving you 7x to the power of 4. Isn't that just delightful? Just remember to keep those numbers and variables in order, and you'll create a beautiful equation every time.
7x-2
what is 7x to the third power + 6x to the second - 2
7x = 2 = 51 is not a valid equality. 2 cannot be equal to 51.
63
(4)(2)+7x-28+7x-27x-6.This expression cannot be simplified further nor solved (because it is not equal to anything).
14x squared minus 7x to the 3rd power can be factored to 7x2(2-x).
If you mean: -2(3x-3) = 7x-2 then the value of x works out as 8/13
7x = 4x+2x+1xSo 7x/2 = 4x/2 + 2x/2 + x/2 (by the distributive property of division over addition) = 2x + x + x/2
To find the product of X and 7X, you multiply the coefficients (numbers in front of the variables) and then multiply the variables together. In this case, 1 (implied coefficient of X) times 7 times X equals 7X^2. So, X times 7X is equal to 7X^2.
Let the number be x: 7x-6 = -20 7x = -20+6 7x = -14 x = -2
hujkImproved anwser:2x+6 = 7x-42x-7x = -4-6-5x = -10x = 2
Try to factor the left side and set each of the linear expressions equal to zero. 7x^2 +8x -12= 0 (7X-6)(X+2)=0 7X-6=0 X=6/7 X+2=0 X=-2