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How To Solve x2-7x plus 10 equals 28? - Answers

First you need to make it equal 0 by subtracting 28 from the left. x2-7x-18 = 0 Then you need to factorise it by finding two numbers that add to make -7 and multiply to make -18 and writing it in brackets like this. (x-9)(x+2) = 0 Then you reverse the signs of the numbers in the brackets to get the two answers (this is a quadratic equation because it has an x2 so it will have two answers). 9 and -2



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How To Solve x2-7x plus 10 equals 28? - Answers

https://math.answers.com/math-and-arithmetic/How_To_Solve_x2-7x_plus_10_equals_28

First you need to make it equal 0 by subtracting 28 from the left. x2-7x-18 = 0 Then you need to factorise it by finding two numbers that add to make -7 and multiply to make -18 and writing it in brackets like this. (x-9)(x+2) = 0 Then you reverse the signs of the numbers in the brackets to get the two answers (this is a quadratic equation because it has an x2 so it will have two answers). 9 and -2



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https://math.answers.com/math-and-arithmetic/How_To_Solve_x2-7x_plus_10_equals_28

How To Solve x2-7x plus 10 equals 28? - Answers

First you need to make it equal 0 by subtracting 28 from the left. x2-7x-18 = 0 Then you need to factorise it by finding two numbers that add to make -7 and multiply to make -18 and writing it in brackets like this. (x-9)(x+2) = 0 Then you reverse the signs of the numbers in the brackets to get the two answers (this is a quadratic equation because it has an x2 so it will have two answers). 9 and -2

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      First you need to make it equal 0 by subtracting 28 from the left. x2-7x-18 = 0 Then you need to factorise it by finding two numbers that add to make -7 and multiply to make -18 and writing it in brackets like this. (x-9)(x+2) = 0 Then you reverse the signs of the numbers in the brackets to get the two answers (this is a quadratic equation because it has an x2 so it will have two answers). 9 and -2

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