b.) 8+2n8+2n
c.) 8×2n8×2n
d.) 2×(8+n)
Answer:
4x^2 +2x +16
Step-by-step explanation:
7x2 + 4x + 10) - (3x2 + 2x - 6)
Distribute the minus sign
7x2 + 4x + 10) - 3x2 - 2x + 6
Combine like terms
7x2 + 4x + 10)
- 3x2 - 2x + 6
-------------------------
4x^2 +2x +16
Answer:
(7×2 + 4x + 10) - ( 3×2 + 2x - 6)
(14 + 4x + 10) - ( 6 + 2x - 6)
(4x + 14 +10) - ( 2x + 6 - 6)
(4x + 24) - ( 2x )
4x + 24 - 2x
4x - 2x + 24
2x + 24
Step-by-step explanation:
clear bracket
All multiplication , subtraction and addition
should be first done in the bracket
After clearing bracket,
then subtract the left answer from the right answer
To get your final answer
A.2x2x5x7
B.4x5x7
C.2x3x5x7
D.5x5x7
Answer:
A
Step-by-step explanation:
This one is best done by doing a pre factor.
140 = 14 * 10 Now all you need do is factor those two numbers.
140 = 7*2 * 5 * 2
Rearranging this you get 2 * 2 * 5 *7
A
Answer:
1/9 and -1/9
Step-by-step explanation:
81x^2=1
Dividing by 81 on both sides:
x^2=1/81
Taking the square root:
x= ±1/9