Here is your answer. 0.117658
7x^2 - 12 = 0
7x^2 = 12 | : 7
x^2 = 12/7 | sqrt
x = sqrt(12/7)
x = sqrt(84) / 7
x = 2sqrt(21) / 7
X+x+2+x+4
we want x+4=3(x)
x+4=3x
2x=4
x=2
the integers are 2,4,6
If you put brackets around (2+1), your method of working is:
1) 15-4*(2+1)=3
2) 15-4*3=3
3) 15-12=3
You don't need any more brackets, as the BIDMAS (brackets, Indices, division, multiplication, addition, subtraction) rule does the rest of the job for you.
The answer is therefore: 15-4*(2+1)=3
Answer:
1/6
Step-by-step explanation:
The numbers -5, -10, -15, -20, -25, and -30 are divisible by 5.