Question

4(a+b)_20(a+b)+25,when a=2,b=1​

Answer 1

97

Step-by-step explanation:

4(2+1)-20(2+1)+25

4×3-20×3+25

12-60+25

72+25

97

97 is your answer

hope it will help you

Answer 2

Answer:

GIVEN  4[a + b]-20[a + b]+25  

where a=2 and b=1

Step-by-step explanation: put a=2 and b=1 in the problem

⇒4[2+1]-20[2+1]+25

⇒4[3]-20[3]+25

⇒12-60+25

⇒-23