Multiply: 4a and 6a + 7

Multiply: 4a and 6a + 7

योग

4a (6a + 7)

= 4a × 6a + 4a × 7

= 24a² + 28a

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अध्याय 11: Algebraic Expressions - Exercise 11 (C) [पृष्ठ १४३]

अध्याय 11 Algebraic Expressions
Exercise 11 (C) | Q 1.04 | पृष्ठ १४३

Complete the table of products.

Obtain the product of xy, yz, zx.

Obtain the product of 2, 4y, 8y², 16y³

Express each of the following product as a monomials and verify the result for x = 1, y = 2:
(−xy³) × (yx³) × (xy)

Multiply: 2a² − 5a − 4 and −3a

Multiply: x + 4 by x − 5

Multiply: −3bx, −5xy and −7b³y²

A total of 90 currency notes, consisting only of ₹ 5 and ₹ 10 denominations, amount to ₹ 500. Find the number of notes in each denomination.

Three consecutive integers, when taken in increasing order and multiplied by 2, 3 and 4 respectively, total up to 74. Find the three numbers.

Multiply the following:

abc, (bc + ca)