मध्यम
यदि p(x) = 2x² + (-1)x + (-3), तो p(-2) ज्ञात कीजिए।
Explanation
Explanation
p(x) में x = -2 रखने पर: p(-2) = 2(-2)² + (-1)(-2) + (-3) = 8 + 2 + -3 = 7।
PRO TIP
Re-check your working by substituting the answer back into the original question.