Question

5 is the root of 2x+5=20​

Answer 1

If we take 5 as the root of 2x+5=20

g(x) = 5

p(x) = 2x+5

=> p(5) = 2×5+5

= 10 + 5

= 15 [Which is not equal to the RHS]

Therefore 5 is not the root of polynomial 2x+5=20

Hope this helps you.....

Answer 2

Answer:

no

Step-by-step explanation:

2x+5=20

2x=20-5

2x=15

x=15÷2

x=7.5