Geometry Worksheet 12B  answers

Multiplying Binomials

                                                                            

 

1.       (x +3)(x + 4)                                                2.       (2x + 1)(x + 4)

 

x2 +7x + 12                                                           2x2 + 9x + 4

 

 

 

3.       (a – 5)(a + 3)                                               4.       (3a + b)(-2a – 4b)

 

a2 – 2a –15                                                            -6a2 –14ab – 4b2 

 

 

 

5.       (3x – 2)(-x + 5)                                            6.       (3x – 1)(3x +1)

 

-3x2 +17x – 10                                                       9x2 – 1        

 

 

 

7.       (1 – 2p)(1 – 3p)                                           8.       (x – )(x +)

 

6p2 – 5p + 1                                                          x2 –  –

 

 

 

9.       (2a – y)(3a + y)                                            10.     (-3x – 2)(-x – 1)

 

6a2 – ay – y2                                                                                3x2 + 5x + 2

 

 

 

11.     (1 – 2c)(1 + 3c)                                           12.     (x + 3)(x + 6)

 

-6c2 + c + 1                                                           x2 + 9x + 18