2x2 - 9x + 4 you do 4 muliply to 2 to get the factors ok which can be multiplied to give 8 and add/subtract to give -9x. OK!!!!! Factors of 8 are: 2 X 4 but it doesnt add upto give 9 so -8 and -1 give -9 when added ok!!!! 2x2 -8x -1x + 4 take common factors 2x(x - 4) - 1(x - 4) (x-4) is common so take one out and other from ooutside brackets Answer 2x2 - 9x + 4 you do 4 muliply to 2 to get the factors ok which can be multiplied to give 8 and add/subtract to give -9x. OK!!!!! Factors of 8 are: 2 X 4 but it doesnt add upto give 9 so -8 and -1 give -9 when added ok!!!! 2x2 -8x -1x + 4 take common factors 2x(x - 4) - 1(x - 4) (x-4) is common so take one out and other from ooutside brackets Answer is (2x-1) (x-4) Hope i helped!!!!!!!
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5xy (2x - 3y + 4 )
It is: (x+4)(x-2) when factored
2x2 - 5x + 12 does not factor. 2x2 - 5x - 12 factors into (2x + 3)(x - 4) 2x2 + 5x - 12 factors into (2x - 3)(x + 4)
2x + x + 4 +2x = x + 20 5x + 4 = x + 20 5x - x = 20 - 4 4x = 16 x = 4
The value of y in the equation -2x plus 4y -4, is 1 plus x/2.