Question

if alpha and beta are the zeros of the quadratic polynomial 4
X square + 5 x minus 10 then find Alpha square plus beta square​

Answer 1

hope it helps you. thanks for asking.

Answer 2

Answer:

105/16

Step-by-step explanation:

α²+β²=(α+β)²-2αβ    ----------------{1}

=now,

α+β=-b/a=-5/4

αβ=ca=-10/4=-5/2

∴applying in equation 1 we get

{-5/4}²-2*{-5/2}

=25/16+5

=25+80/16

=105/16

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