Question

(3x + 4) (3x - 5)

Answer to this ​

Answer 1

Answer:

$(3x)(3x) - 5(3x) + 4(3x) + 4( - 5) \\ 9 {x}^{2} -1 (3x) - 20 \\ 9 {x}^{2} - 3x - 20$

Answer 2

Step-by-step explanation:

(3x)² -20

(3x)²-(2√5)²

(3x+2√5)(3x-2√5)