The greatest common factor would be 4a because it can be multiplied by 8 to be 32a and by 15a^2 to be 60a^3. If this is right could you possibly give me brainliest? Hope this helped.
A=4 b=-10 c=5
10+-√100-(4)(4)(5)/8
10+-√20/8
10+-2√5/8
x= (5+√5)/4 and x =(5-√5)/4
the parentheses just mean that it is all over 4
So, that takes lots of algebra, and I can't show it on this, because there are lots of symbols, so... ill try to figure out the functions for that.
You multiply 42 times .25 and you'll get 6.3 dollars as a tip