Answer:
Number n increased by 18 = n +18
Number is 2 less than 5 times n= 5n -2
They are same => n +18 = 5n -2
Option B
[ n + 18 = 5n -2
18 +2 =5n - n
20 = 4n
n = 5
Lets check 5+18 = 5*5 - 2
23 = 23]
Answer:
ok so the answer is x
≈
−
11.33513059
Step-by-step explanation:
Answer:
Step-by-step explanation:
(2x+1)^2+(2x^2+2x)^2=
(2x+1)^2=4x^2+4x+1
(2x^2+2x)^2=4x^4+8x^3+4x^2
4x^2+4x+1+4x^4+8x^3+4x^2=4x^4+8x^3+8x^2+4x+1
(2x^2+2x+1)^2=4x^4+8x^3+8x^2+4x+1
4x^4+8x^3+8x^2+4x+1=4x^4+8x^3+8x^2+4x+1
Answer:
18+30 = 48
6(3+10) = 78
so they're not equal
Step-by-step explanation:
to be equal we have to change 6(3+10) to 6(3+5)
18+30 = 48
6(3+5) = 48
now they're equal