Answer:
9/10
Step-by-step explanation:

is equal to 2x, since it is the derivative of

.
X=1 and y=2 1+2=3 the letters are in place of the letters
Answer:
<em>R</em><em>=</em> {-7,-2}
Step-by-step explanation:
- divide 14 into 2 and 7 because 2x7=14
- write the equation as a multiplication of (x+7) and(x+2) =0
- for the result to equal zero. at least one of the factors must equal zero, therefore we get two solutions