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31 January, 07:38

If the expression ax (2x+y-5) simplifies to 6x^2 + 3xy-15x, what is the value of a

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  1. 31 January, 08:06
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    a = 3

    Step-by-step explanation:

    Expand the given expression and compare like terms on both sides

    Given

    ax (2x + y - 5) = 6x² + 3xy - 15x ← distribute left side

    2ax² + axy - 5ax = 6x² + 3xy - 15x

    Compare coefficients of the x - terms, that is

    - 5a = - 15 (divide both sides by - 5)

    a = 3
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