Question

find the value of p for which the equation has real roots : px²+4x+1​

Answer 1

Answer:

p ≤ 4

Step-by-step explanation:

$d = b^{2} - 4ac$, where $a = p, b = 4, c = 1$

For real roots, d should be equal to or greater than 0

$16 - 4p \geq 0$

$16 \geq 4p$

$4 \geq p$

$p \leq 4$