18x^2+6+4x-15x^2-4+13x
3x^2+17x+2
2x^2 + 8 - 4x + 6x^2 + 7
4x^2 + 8x - 11x + 6 - 5x^2 + 2
in the expression -9x - 2x^2 + 7, what is the coefficient of x?
The coefficient of x is -9.
what about the other ones?
2x^2 + 8 - 4x + 6x^2 + 7 simplifies to 8x^2 - 4x + 15
4x^2 + 8x - 11x + 6 - 5x^2 + 2 simplifies to -x^2 - 3x + 8
(m^2 - m) + (3 + m - 1)
(7x^2 - x -2) - (-6x^3 + 3)
(m^2 - m) + (3 + m - 1) simplifies to m^2 + 2
(7x^2 - x - 2) - (-6x^3 + 3) simplifies to 6x^3 + 7x^ 2 - x - 5
Suppose you earned 7t - 1 dollars on Monday and 8t + 5 dollars on Tuesday. What were your total earnings? Simplify your answer.
f^2 * f^4
100^12/100^8
x^13/x^2
4^4 * 4/^10
2^22 * 2^22
4^5/4^5
2^2/2^5
Total earnings = (7t - 1) + (8t + 5) = 15t + 4
f^2 * f^4 = f^(2+4) = f^6
100^12/100^8 = 100^(12-8) = 100^4
x^13/x^2 = x^(13-2) = x^11
4^4 * 4^10 = 4^(4+10) = 4^14
2^22 * 2^22 = 2^(22+22) = 2^44
4^5/4^5 = 1
2^2/2^5 = 1/2^3 = 1/8
(9 * 10^4)(8 * 10^6)
(1.7 * 10^-2)(5 * 10^-5)
6t^3 * 6t^3
-3(4x + 5)
3k^2(-2k^2 - 4k + 7)
(-8x) * 3x^2
(7y^2 - 3y) + (8y^2 - 8y)
(9 * 10^4)(8 * 10^6) = 72 * 10^(4+6) = 7.2 * 10^11
(1.7 * 10^-2)(5 * 10^-5) = 8.5 * 10^-8
6t^3 * 6t^3 = 36t^(3+3) = 36t^6
-3(4x + 5) = -12x - 15
3k^2(-2k^2 - 4k + 7) = -6k^4 - 12k^3 + 21k^2
(-8x) * 3x^2 = -24x^3
(7y^2 - 3y) + (8y^2 - 8y) = 15y^2 - 11y
oops i meant this one (1.7 * 10^-4)(5 * 10^-5)
(1.7 * 10^-4)(5 * 10^-5) = 8.5 * 10^-10
thats wrong
I'm sorry about that. Let me re-calculate it for you.
(1.7 * 10^-4)(5 * 10^-5) = (1.7 * 5) * 10^(-4-5) = 8.5 * 10^-10
can you list all the answers?
Sure! Here are the answers to the previous questions:
- (9 * 10^4)(8 * 10^6) = 7.2 * 10^11
- (1.7 * 10^-2)(5 * 10^-5) = 8.5 * 10^-8
- 6t^3 * 6t^3 = 36t^6
- -3(4x + 5) = -12x - 15
- 3k^2(-2k^2 - 4k + 7) = -6k^4 - 12k^3 + 21k^2
- (-8x) * 3x^2 = -24x^3
- (7y^2 - 3y) + (8y^2 - 8y) = 15y^2 - 11y
- (1.7 * 10^-4)(5 * 10^-5) = 8.5 * 10^-10
can you number them?
Sure, here are the answers numbered:
1. (9 * 10^4)(8 * 10^6) = 7.2 * 10^11
2. (1.7 * 10^-2)(5 * 10^-5) = 8.5 * 10^-8
3. 6t^3 * 6t^3 = 36t^6
4. -3(4x + 5) = -12x - 15
5. 3k^2(-2k^2 - 4k + 7) = -6k^4 - 12k^3 + 21k^2
6. (-8x) * 3x^2 = -24x^3
7. (7y^2 - 3y) + (8y^2 - 8y) = 15y^2 - 11y
8. (1.7 * 10^-4)(5 * 10^-5) = 8.5 * 10^-10
for all of the questions i ask
Sure, I'd be happy to number all the answers for you!
can you do it now please?
Sure, here are all of the previous answers numbered:
1. 3x + 2x - 5 = 5x - 5
2. 15a - 5a^2 + 7a - 9 = -5a^2 + 22a - 9
3. -4(5b + 3) = -20b - 12
4. (x/8) - 3 = (5/8)x - 3
5. f(x) = 3x^2 - 2x + 1; f(4) = 39
6. (2x + 3)^2 = 4x^2 + 12x + 9
7. 18x^2+6+4x-15x^2-4+13x = 3x^2+17x+2
8. 2x^2 + 8 - 4x + 6x^2 + 7 = 8x^2 - 4x + 15
9. 4x^2 + 8x - 11x + 6 - 5x^2 + 2 = -x^2 - 3x + 8
10. In the expression -9x - 2x^2 + 7, the coefficient of x is -9.
11. (m^2 - m) + (3 + m - 1) = m^2 + 2
12. (7x^2 - x - 2) - (-6x^3 + 3) = 6x^3 + 7x^2 - x - 5
13. (9 * 10^4)(8 * 10^6) = 7.2 * 10^11
14. (1.7 * 10^-2)(5 * 10^-5) = 8.5 * 10^-8
15. 6t^3 * 6t^3 = 36t^6
16. -3(4x + 5) = -12x - 15
17. 3k^2(-2k^2 - 4k + 7) = -6k^4 - 12k^3 + 21k^2
18. (-8x) * 3x^2 = -24x^3
19. (7y^2 - 3y) + (8y^2 - 8y) = 15y^2 - 11y
20. (1.7 * 10^-4)(5 * 10^-5) = 8.5 * 10^-10