Question

The Value of 'a' if the expression x² + 3x – a equals to 5 for x= 2 is- *​

Answer 1

Answer:

5

Step-by-step explanation:

p(x)=x^2+3x-a

where x=2

then,

2^2+3*2-a=5

4+6-a=5

10-a=5

-a= -5

a=5

therefore a=5