The factored expression would look like this : 3(x+8)(x-8)
An equation is written in a correct way if the equation is
balanced. If you want to find out if the equation is balanced, you have to
count how many molecules of each element is present and then just balance the
equation on the left side and the right side.
Hello,
Let's assume f the age of the father,
s the age of the son.
<span>The age of a father is 2 less than 7 times the age of his son ==> f=7s-2 (1)
</span>
<span>In 3 years, the sum of their ages will be 52 ==>(f+3)+(s+3)=52 (2)
(2)==>f+s+6=52
==>f+s=46 (3)
(3) and (1) ==>7s-2+s=46
==>8s=48
==>s=6
f=46-6=40
</span>
To get a fraction to a decimal, you divide the top number by the bottom number. So, in this case it would be 8 divided by 125. Gives you 0.064.
