Use suitable identity - (3x+4)(3x-5)
Answers
Answered by
6
hey there here is your answer
using identity (x+a) (x+b) = x²+(a+b)x + ab
(3x+4)(3x-5)
= (3x)² + (4-5)*3x + 4×(-5)
= 9x² -3x -20
hope it helps you
mark as brainlest if it HELPS
using identity (x+a) (x+b) = x²+(a+b)x + ab
(3x+4)(3x-5)
= (3x)² + (4-5)*3x + 4×(-5)
= 9x² -3x -20
hope it helps you
mark as brainlest if it HELPS
puja77:
hey dear i think your formula is wrong
its x² + (a+b)x + ab
i got the right one ✓
Answered by
1
-3x(3x-5)+4(3x-5)
-9x+15+12x-20
-9x+12x+15-20
-3x-5
hope it will help u dear
-9x+15+12x-20
-9x+12x+15-20
-3x-5
hope it will help u dear
Similar questions