4a - 3b
4(5) - 3(- 2)
20 + 6
26
26 is your answer.
Answer:
5<em>i</em>
Step-by-step explanation:
- =

- =

- =
* 5
Rule:
= <em>i</em>
So you get <em>i </em>* 5<em> </em>=<em> </em>5<em>i</em>
Answer: total length 5780
Step-by-step explanation:
1st wire. 340m
2nd wire. 1360m
3rd wire. 4080
6x^2+14x+4
First factor out all numerical factors (=2 in this case)
2(3x^2+7x+2)
look for m,n such that m*n=3*2, m+n=7 => m=6, n=1
2(3x^2+6x + 1x+2)
Factor 3x^2+6x into 3x(x+2)
2( 3x(x+2)+1(x+2) )
factor out common factor (x+2)
2(x+2)(3x+1)
=>
6x^2+14x+4=2(x+2)(3x+1)