Math, asked by 949342rad, 8 months ago

2) Find the zero's the polynomial equation
Plx)=x²+x-30

Answers

Answered by MrChauhan96
6

\bf\purple{\underline{\boxed{Question}}}

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\small\tt{x^{2}+x-30}

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\bf\purple{\underline{\boxed{Solution}}}

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\small\tt{x^{2}+6x-5x-30}

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\small\tt{Let's\: factorise\: this\: equation}

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\small\tt{We\:will\:get,}

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\small\tt{x^{2}+6x-5x-30=0}

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\small\tt{x(x+6)-5(x+6)}

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\small\tt{(x-5)\:(x+6)=0}

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\small\tt{Therefore,}

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\small\tt{x={5}\:\:,\:\:{-6}}

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\small\tt{The \:zeroes\:of\:f(x)\:are\:5\:and\: -6}

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\small\tt{Now\:for\:finding\:the\:zeroes\:of \:the\: } \tt{polynomial.}

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\small\tt{We\: use,}

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\small\tt{ \boxed{Sum\:of\:the\:zeroes=\alpha+	\beta}}

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\tt\red{5-6\:=\:-1}

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\small\tt{ \boxed{Product\:of\:the\:zeroes=α \times β}}

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\tt\red{5\times(-6)\:=\:-30}

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\bf\purple{\underline{\boxed{Thanks}}}


Anonymous: Perfect
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