The sum of 14 and 3 is equal to 17
n is an integer, so 2n+1 is also an integer. 8s+1 is equal to the square of 2n+1, so it's a square number.
2n+1 is an odd integer for any value of n. The square of an odd integer is always an odd integer. Therefore 8s+1=(2n+1)² is odd.
8s+1 is an odd square number.
X^2 - 16x + 56 = 0
= (x - 8)^2 - 64 +56= 0
= (x - 8)^2 - 8 = 0
x^2 - 8x + 11 = 0
(x - 4)^2 - 16 + 11
(x - 4)^2 - 5 = 0
(x + 15)(x + 5) = 96
x^2 + 20x + 75 = 96
(x + 10)^2 - 100 + 75 = 96
(x + 10)^2 = 96 +25 = 121
taking square roots:-
x + 10 = 11
x = 1
Answer:80
Step-by-step explanation:
I fixed it!
There is no sign in between 2b and 6.
Case 1:
Assuming the sign is '+'
Then, 2b + 6 for b = 9 is given by 2(9) + 6 = 18 + 6 = 24.
Case 2:
Assuming the sign is '-'
Then, 2b - 6 for b = 9 is given by 2(9) - 6 = 18 - 6 = 12.
Case 3:
Assuming the sign is 'x'
Then, 2b x 6 for b = 9 is given by 2(9) x 6 = 18 x 6 = 108.
Case 4:
Assuming the sign is '÷'
Then, 2b ÷ 6 for b = 9 is given by 2(9) ÷ 6 = 18 ÷ 6 = 3.