Question

Find dy/dx when y=(3x+2)(4x-5)​

Answer 1

Answer:

first we apply UV rule for differentiation here , like differentiate u ,taking v constant . and then differentiate v taking u constant

so dy/dx= (3x+2). 4 + 3.(4x-5)

Answer 2

Answer:

dy/dx = 24x -7

Explanation:

y = (3x+2)(4x-5)

y = 3x(4x-5)+2(4x-5)

y = 12x^2 -15x +8x -10

y = 12x^2 -7x -10

dy/dx = d/dx(12x^2 -7x -10)

= 24x -7