Question

if x=2 then find the value of 3x^2+4x-21​

Answer 1

Answer:

3(2)²+4(2)-21

3(4)+4(2)-21

12+8-21

20-21

=-1

your question is answered

Answer 2

✓. Put value of X in the equation:-

• 3 × 4 + 4 × 2 - 21 => -1.

Thank you.