Question

If y=-2 then find the value of 1+y²+y⁴​

Answer 1

• $\small\sf{y\:=\:-2}$

$\small\sf{\green{\bold{☘}}}\:\small\sf{\bold{1\:+\:{y}^{2}\:+\:{y}^{4}}}$

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$\small\sf{\bold{\:\:\:\:\:\:\:\::⟹\:1\:+\:{y}^{2}\:+\:{y}^{4}}}$

$\small\sf{\:\:\:\:\:\:\:\::⟹\:1\:+\:(-2\:༝\:-2)\:+\:(-2\:༝\:-2\:༝\:-2\:༝\:-2)}$

$\small\sf{\:\:\:\:\:\:\:\::⟹\:1\:+\:4\:+\:16}$

$\small\sf{\:\:\:\:\:\:\:\::⟹\:5\:+\:16}$

$\small\sf{\:\:\:\:\:\:\:\::⟹\:21}$