# algebra

posted by .

please write an explaination why (x^3)(x^4) is not x^12. I am confused thank you.

it is not the answer because, first of all, try replacing x with another number, in this case, let's say two.
(2^3)(2^4)= 128, and if you try 2^12, you do not get 128, instead your answer would be 4,096. The same with any other number. so try finding the number that would fit in. I found (2^7)=128.
so now try another number, 4.
(4^3)(4^4)= 16,384 let's check that. 4^7= 16384. so it wouldn't be x=12, it would be x=7. try replacing a variable with different numbers.

## Similar Questions

1. ### algebra

How do you factor numbers? 2x squared + 5x-3 for instance?
2. ### math

I need help solving these equations -5s+3s-2s=48 6m=5m-2+m 5d=-2d-24 you need help or you want someone to solve them for you?
3. ### rational inequality, math

2 6 ___ + ____ < or = - 5 X X - 1 Can some one please clearly show me how to answer this and put the solution in interval notation?
4. ### algebra

1)A.f(x)= x^2+4 B.f(x)= x^2-4x^2+4x-16 C.f(x)= x^2+4x^2+4x+16 D.f(x)= x^2-4x^2-4x+16 2)A.+-1,+-2,+-3,+-6 B.0,+-1,+-2,+-3,+-6,+-1/3,+-2/3 C.+-1,+-2,+-3,+-6,+-1/3,+-2/3 D.+-1,+-3,+-1/6,+-1/3,+-1/2,+-3/2 4)I don't know what they mean …
5. ### Language/Listening& Speech Skills

I have a couple of questions that I need help with. Please let me know if you agree with my answers. 1. "I'm cutting the apple into six pieces so that you can share with each of your friends," is an example of: A. elaborated speech …
6. ### Algebra

I am confused by this problem. Solve: Clear fractions or decimal first. 7/3x-1/3x=3x+24/3-1/3+7/3x. I know that I need to gather all terms first. My answer that I came up with was: -23/17. I'm sure that answer is wrong. Can someone …
7. ### algebra 2

Two cards are randomly drawn from a standard deck without replacing the card after the first draw. Find the probability of drawing a spade followed by a heart. Please type your answer as a fraction.
8. ### MATH HELP Calculus

Im stuck on a lot of questions, here they are: 24 + 12 + 6 + ...(S7) Sn = 24(2^7-1)/2-1 S7 = 24(127)/1 S7 = 3048/1 Thats what I got as an answer, but it's wrong, the real answer is a fraction answer, and its 381/8. How did they get …
9. ### algebra ineqUALITIES

can you check these tell if the number after the: color is a solution x < 7; 7 i say yes p > -3;3 i say yes k is greater than or equal to 5; 0 i say no 3z is less than or equal to 12;4 i say yes n - 5 > 3; 6 i say no 2g + …
10. ### Algebra

Thank you...I forgot to add the other part of the question.. The sum of two number equal 25 The second number is 4 times larger than the first number. Write the two equations AND what are the two numbers. I have x+4x =25 but not sure …

More Similar Questions