9. Find the product of the following: a. \( ( 2 x - 7 ) ( x + 6 ) \) b. \( ( 3 x - 4 ) ( 5 x - 3 )\)
10. Factor each expression completely a. \( x ^ { 2 } + 5 x - 24 \) b. \( 3 y ^ { 2 } - 4 y - 15\)
9. Find the product of the following: a. \( ( 2 x - 7 ) ( x + 6 ) \) b. \( ( 3 x - 4 ) ( 5 x - 3 )\)
10. Factor each expression completely a. \( x ^ { 2 } + 5 x - 24 \) b. \( 3 y ^ { 2 } - 4 y - 15\)
9. a) 2x^2 + 5x - 42
b) 15x^2 - 29x + 12
10. a) (x-3)(x+8)
b) (y-3)(3y+5)