Question

(3x+5z)² pls tell me this answer​

Answer 1

Step-by-step explanation:

9x^2 + 25z^2 + 30xz. .

Hope this helps you

Answer 2

Step-by-step explanation:

( a+b)^2= a^2+2ab+b^2

(3x+5z)^2= 9x^2+30xz+25z^2

=9x^2+15xz+15xz+25z^2

=3x(3x+5z)+5z(3x+5z)

=(3x+5z)(3x+5z)

= 3x+5z=0

put x=0 then z=0

put x=1 then z=-3/5