Example 1
Factorize 81x* + 36x²y + 16y*

Which expression is equivalent to 8(k + m) − 15(2k + 5m)?

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 =

Which number is composite a.9 b.5 c.11 d.2