Simplify: 9a (2b – 3a + 7c)

योग

9a (2b – 3a + 7c)

= 18ab – 27a² + 63ca

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अध्याय 13: Fundamental Concepts (Including Fundamental Operations) - Exercise 11 (F)

अध्याय 13 Fundamental Concepts (Including Fundamental Operations)
Exercise 11 (F) | Q 11

Identify term and factor in the expression given below:

− 4x + 5

In -5x³y²z⁴ ; write the coefficient of -5xy²z. Also, write the degree of the given algebraic expression.

Simplify: 7n² – 9n² + 3n²

Find the sum of: 3a + 5b + 2c, 2a + 3b-c and a + b + c.

Find the sum of: + 4a and -7b

Subtract the second expression from the first:

x + 2y + z, - x - y - 3z

Simplify: 2 [a – 3 {a + 5 {a – 2) + 7}]

The side of the square of area 9y² is ______.

Factorise the following expression.

– xy – ay

Identify term which contain y² and give the coefficient of y².

2x²y - 15xy² + 7y²