Question

find coefficient of x. I) x(x+3) ii) (x+2)(x+3). III) (x²-1)(x+5)​ with full explanation​

Answer 1

Answer:

The Coefficient of

I) 3

II) 5

III) -1

Step-by-step explanation:

I)x(x+3)

$x^{2}$ + 3x    [Here, the Coefficient of x in 3x is 3]

II)( x + 2 )( x + 3 )

x( x + 3 ) + 2( x + 3 )

$x^{2}$ + 3x +2x + 6  

$x^{2}$ + 5x + 6 [ Here, the Coefficient of x in 5x is 5 ]

III)( $x^{2}$ - 1 )( x + 5 )

$x^{2}$( x + 5 ) - 1( x + 5 )

$x^{3}$ + $x^{2}$ -x - 5   [ Here, the Coefficient of x in -x is -1 ]

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