Question

If p=-2, the value of -3p2 +5p-2 is: a). -12 b) -20 c) -24 d) 0​

Answer 1

We know that p = -2

-3p2 +5p-2

= (-3 x -2) + (5 x -5) -2

= 6 + -25 - 2

= -19 - 2

= -21

Answer 2

To find : the value of  $-3p^{2}+ 5p - 2$

Given : $p = -2$

Solution :

• To find the value of $-3p^{2}+ 5p - 2$  we need to substitute the given value of p in the equation .
• after substituting value by carrying out simple  addition and subtraction we can find the value of equation .

      ⇒      $-3p^{2}+ 5p - 2$  

      ⇒       $= -3(-2)^{2} + 5 (-2) -2$

      ⇒       $= -3 (4) -10 -2$

      ⇒       $= -12 -10 -2$

      ⇒       $= -24$

   Hence , option ( c )$-24$  is the correct answer.