-3x^2+10x-3
This is of the form ax^2+bx+c. We need to find two values, j and k, such that:
jk=ac=9 and j+k=b=10, so j and k must be 1 and 9.
Now replace bx with jx and kx in the original equation...
-3x^2+x+9x-3 now factor 1st and 2nd pair of terms
-x(3x-1)+3(3x-1)
(-x+3)(3x-1) or equivalently...
-(x-3)(3x-1) or as they put it:
-(3x-1)(x-3)
Answer:
12,789
Step-by-step explanation:
Answer:
B
Step-by-step explanation:
Answer:
33
Step-by-step explanation:
You can do this by repeated addition:
11 + 11 + 11
If you add these up, you get the final answer:
11 + 11 + 11 = 33
20t² - 13tv - 15v²
20t² - 25tv + 12tv - 15v²
(5t + 3v)(4t - 5v)
