When mutiplying this...
x² - 5x + 4 X x² + 2x - 3
x² + 3x - 28 x² + 10x +21
...is to factor out?
But, what do i do if i can't find out factors?? Because im not sure how to factor them
Left Side:
Use the sum and product method.
The top equates to:
And the bottom equates to:
The terms cancel out so the left side of your expression is:
Right Side:
The top equates to:
The bottom equates to:
The terms cancel out, so your right side expression is:
Rules of fractions say that we simply multiply the top by the top, and the bottom by the bottom to get: