What is the unknown number:
( 4 × - ( 1 + 8 × 2 ) = 3

Which is the completely factored from of xy^3-x^3y

Follow these steps using the algebra tiles to solve the equation −5x + (−2) = −2x + 4. 1. add 5 positive x-tiles to both sides and create zero pairs. 2. add 4 negative unit tiles to both sides and create zero pairs. 3. divide the unit tiles evenly among the x-tiles. x =

Common binomial factor of 6x(3x+7)+5(3x+7)