NOTE: There is an invisable times sign between the 12 and the (
The negative index means that the answer is going to be little.
move the decimal point 7 places in the direction that will make the number smaller.
If you want to you can poat your answer and we will check it for you.
Post your answer and we will check it for you.
$$\\4x-5(x-1)+8=0\\ 4x-5x+5+8=0\\ -x+13=0\\ x=13$$
If you would like more explanation then please ask.
there is no question here.
I'll just do the first one for you.
$$\\3a^2 - 5b + 8\\ =3*(-2)^2-5*(3)+8\\ =3*4-5*(3)+8\\ =12-15+8\\ =5\\$$
$$\\$ \frac{ab}{2}=\frac{a}{2}$\\\\ If $a=0$ then b can equal anything \\\\ If $a\ne0$ then\\ $ \frac{b}{2}=\frac{1}{2} $\\ $ b=1$\\\\\\ So if $a=0$ the $b\in R$ and if $a\ne0$ to zero then $b=1$$$
I think that this is what you mean.
$$\\x^?\times x^6=x^9\\\\ ?+6=9\\\\ so\; the\; missing\; exponent\; is \;3$$
Use the site calcon the home page
"How to type in fractions" is a sticky topic. Sticky topics are located on the bottom right corner of most pages.
Evaluate means "find the answer"
+118730 
