Question

Find the zeroes of the quadratic polynomial x2+7x-18.

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Answer 1

HOPE THE ABOVE ATTECHMENT HELPS YOU

Answer 2

Answer:

Question

Find zeroes of the quadratic polynomial x²+7x-18

Answer

solve

${x}^{2} + 7x - 18$

By spilting middle term

${x}^{2} + (2 - 9)x - 18 \\ {x}^{2} + 2x - 9x - 18 \\ taking \: common \: factors \: \\ x(x + 2) - 9(x + 2) \\(x + 2) \: (x - 9) \\ then \: finding \: zeroes \: of \: quadratic \: \\ polynomial \: \\ taking \: both \: values \: equal \: to \: ( \: 0 \: ) \\ = x + 2 = 0 \\ = x = - 2 \\ = x - 9 = 0 \\ x = 9 \\ the \: zeroes \: of \: quadratic \: equations \: are \: \\ x = - 2 \\ x = 9$

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completed

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