There aren't enough terms to factor this by grouping; you need at least four, at least as far as i know? trinomials are usually pretty easily factored by trial and error
(2x - 3)(x - 1)
is how it factors down. you know that two only has two factors (2 and 1), so you always have (2x +_) and (1x +_) for trinomials beginning with 2x^2. from there, i usually just plug in factors of your constant (3, in this case) and see which ones fit the empty spaces!!
8a^3 - 26a^2b + 11ab^2 + 10b^3
Our goal is to get r all by itself on one side of the equals sign. To do this, we'll first add s to both sides
k=2r-s
+s +s
k+s=2r
Now, to get r alone, we need to get rid of the 2. Since 2 is multiplied by r, we need to divide it from both sides to get r alone.
k+s=2r
/2 /2
(k+s)/2=r
Since there are no numbers, that's the final answer.
A fit the first one and B for the second one
Answer: y=8 m=5
Step-by-step explanation: