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if a pen costs rs. (3a-b)and if you buy a (3a+b)pens how much will you pay to the shoopkeeper​

By Piper

if a pen costs rs. (3a-b)and if you buy a (3a+b)pens how much will you pay to the shoopkeeper​

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Piper

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The total cost of a ball and a bat is Rs. 220 and the cost of bat is Rs. 200 more than the ball, so what is the cost of bat and ba

2 thoughts on “if a pen costs rs. (3a-b)and if you buy a (3a+b)pens how much will you pay to the shoopkeeper​”

  1. Step-by-step explanation:

    The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object’s speed and direction of motion

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  2. Answer:

    cost of 1 pen = (3a-b)

    cost of (3a+b) pens = (3a+b)(3a-b)

    [tex]so,(a+b)(a-b)=a^{2} -b^{2}[/tex]

    now appliying the identity

    [tex]so,(3a+b)(3a-b)\\(3a)^{2} -b^{2}\\9a^{2} -b^{2}[/tex]

    Step-by-step explanation:

    pls mark brainliest

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