Question

e)
(2+x)(x-7)
(x-5) (x+4)
= 1​

Answer 1

( 2 + x ) ( 7 - x ) /( 5 - x )( 4 + x ) = 1

( 2 + x ) ( 7 - x ) = ( 5 - x ) ( 4 + x )

14 - 2x + 7x - x² = 20 + 5x - 4x - x²

14 + 5x = 20 + x

5x - x = 20 - 14

4x = 6

x = 6 /4

x = 3/2

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