Question

any body can solve this problem please.
if you solve it correctly so I thanks your all answer also
mark you as brainlist

please solve in page​

Answer 1

1. (3x+4)(7x-9)

21x²-21x+28x-36

21x²+7x-36

Hope it will help you

Answer 2

Answer:

(a) (3x+4)(7x-9)

=> 3x(7x-9)+4x(7x-9)

=> 21x²-27x+28x²-36x

=> 49x²-63x

(b) (x²+y)(x²+x)

=> x²(x²+x) +y(x²+x)

=> x^4+x³+x²y+xy

(c) (3a²+b)(2a²+4b²)

=> 3a²(2a²+4b²)+b(2a²+4b²)

=> 5a^4+12a²b²+2a²b+4b^4

similarly all the other will also be done like this

(a+b)(c+d)

a(c+d)+b(c+d)

ac+ad+bc+cd