Grade 9 Algebra: Please Help!, Multiply Polynomial Expressions

Question

Fill in the blanks to show the product:

1. (x + 6)(x - 4) = ___x² + ___x + ___
2. (2x + 5)(x - 3) = ___x² + ___x + ___
3. (3x + 2)(2x + 5) = ___x² + ___x + ___
4. (2x - 1)(x - 5) = ___x² + ___x + ___

Answer 1

1 x^2 +2x -24

2 2x^2 -x -15

3 6x^2 +19x +10

4 2x^2 -11x +5

Use the FOIL method, multiply first terms of each factor, then Outside terms, then Inside terms then Last terms. Add the Outside and Inside terms as they're both x terms.