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7th Standard English Medium Maths Subject Term 3 Algebra Book Back 3 Mark Questions with Solution Part - I Question Bank Software Jun-17 , 2021

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7th Standard English Medium Maths Subject Term 3 Algebra Book Back 3 Mark Questions with Solution Part - I

7th Standard English Medium Maths Subject Term 3 Algebra Book Back 3 Mark Questions with Solution Part - I

7th Standard

    Reg.No. :
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Maths

Time : 01:00:00 Hrs
Total Marks : 15

    3 Marks

    5 x 3 = 15

  1. Simplify the following using the identity (x + a)(x + b)= x2 + x(a + b) + ab :
    (i) (x + 3)(x + 5)
    (ii) (y + 8)(y + 6)
    (iii) 43 x 36

  2. Factorise 9x2 + 30xy + 25y2

  3. Using the identity (x + a)(x + b) = x2 + x(a + b) + ab , find the following product.
    (6a + 9)(6a − 5)

  4. Expand the following squares, using suitable identities.
    (b - 7)2

  5. Expand the following squares, using suitable identities.
    (xyz - 1)2

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