x-7 x+4 8r 23 b)Gr-7)X(x+ 4) (x-7)(x+4) (r-7)r4

Question

Question

math algebra

Answer 1

Answer #1

3x / ( x- 7 ) + 5 / ( x+ 4 )

{ 3x ( x+ 4) + 5 (x - 7 ) } / ( x - 7 ) ( x + 4 )

{ 3x^2 + 12x + 5x - 35 } / ( x - 7 ) ( x+ 4)

( 3x^2 + 17x - 35 ) / ( x- 7 ) ( x + 4)

none of the options is correct

if the problem would have been

3 / (x-7) + 5 / (x+4)

3 (x+4) + 5(x-7) / (x-7) (x+4)

= (8x - 23) / (x-7) (x+4)

option b would be correct

but since its 3x / x- 7 + 5 / x + 4

none of these is correct

Answer 2

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