Question

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Please pake cara dan jawabnya yang pas.....

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Butuh jawaban yang murni dan benar

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Answer 1

1) (3b - bx)/(cx - 3c)

= -b(x - 3)/c(x - 3)

= -b/c

2) (3b - bx)/(cx - 3c)

= -b(x - 3)/c(x - 3)

= -b/c

3) 3/(x+1) + 3/(x - 1)

= [3(x -1) + 3(x+1) ]/(x² - 1)

= ( 3x + 3x - 3 + 3)/(x² - 1)

= 6x/(x² - 1)

4) x/(x + y) + y/(x - y)

= [x(x-y) + y(x+y) ] / ( x² - y² )

= (x² - xy + xy + y²)/(x²-y²)

= ( x² + y²)/(x² - y²)

5) 4a/3x - 4/2x

= 4a/3x - 6/3x

= (4a -6)/3x

6) 2/(x+3) - 3/(x-2)

= [ 2(x-2) - 3(x +3) ]/(x+3)(x-2)

= (2x -4 - 3x - 9)/(x² + x - 6)

= (-x - 13)/(x² + x - 6)

7) 3x/2x × (x -4)/6x

= 3(x-4)/2(6x)

= (x -4 )/4x

8) ab²/c ÷ b/ac

= ab²/c × ac/b

= ab²/b × ac/c

= ab × a

= a²b


9) x²y³/3z ÷ 18xy/6

= x²y³/3z × 6/18xy

= x²y³/3xy × 1/3z

= xy²/9z



10) (x²+y²)/(x+y) / (x/y + y/x)

= (x² + y²)/(x + y) / ( x² + y²)/(xy)

= (x² + y²)/(x + y) × xy/(x² + y²)

= (x² + y²)/(x² + y²) × (xy)/(x + y)

= (xy)/(x + y)