Question

a quadratic polynomial whose zeroes are 5 and -3 is​

Answer 1

Step-by-step explanation:

$x = 5 \: and \: x = - 3 \\ x - 5 = 0 \: and \: x + 3 = 0 \\ (x - 5)(x + 3) = 0 \\ {x}^{2} + 3x - 5x - 15 = 0 \\ {x}^{2} - 2x - 15 = 0$