Question

please give me answer​

Answer 1

Answer:

Abey chall

Step-by-step explanation:

plz mark me as brainliest plz

Answer 2

Answer:

I don't know that if you want solution for ques. 38 or 39.so I answered both the questions.

I hope it will help you.

Step-by-step explanation:

Solution 38 :

4y-7z = binomial

${y}^{2} = monomial \\ x + y - xy = trinomial \\ 100 = monomial \\ ab - a - b = trinomial \\ 5 - 3t = binomial \\ 4 {p}^{2} q - 4p {q}^{2} = binomial \\ 7mn = monomial \\ {a}^{2} + {b}^{2} = binomial \\ {z}^{2} + z = binomial \\ 1 + x + {1}^{2} = trinomial$

solution 39 :

(a) 3mn , -5mn , 8mn, -4mn

= 3mn + ( -5mn ) + 8mn + ( -4mn )

= 3mn - 5mn + 8mn - 4mn

= 11mn - 9mn

= 2mn

(b) a+b-3 , b-a+3 , a-b+3

= a+b-3 + ( b-a+3 ) + ( a-b+3 )

open the brackets now ,

= a+b-3+b-a+3+a-b+3

add positive digits and negative digits separately

= 2a-a+2b-b+6-3 [ 2a-a = a , similarly 2b-b = b ]

= a+b+3