Question

(3x+1/4) solve using identity

Answer 1

Answer:

we have to use identity 4 (x+a)(x+b)=x2+(a+b)x+ab

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

=(3x+4){3x+(-5)}

here x=3x a=4 and b=-5

=3x2+{4+(-5)}+4×(-5)

=9x2-1-20

Step-by-step explanation:

Answer 2

Answer:

9x2-1-20

9x2-1-20mark as brainliest...!!