Factorise!!

Division is the inverse process of ________________________

• addition

• subtraction

• multiplication

• division

) The process of finding two or more expressions whose product is the given expression is called _____________________________

• polynomial

• algebraic expression

• factorisation

• identity

) The degree of a polynomial is the highest ___________________ of the variable involved in various terms of the polynomial.

• exponent

• term

• co-efficient

• factor

_______________________ is a reverse process of multiplication.

• factorisation

• addition

• subtraction

• multiplication

Which number is a factor of every expression but is not specified in factorization?

• 0

• 1

• x

• y

Find the common factor in the expression 7a² – 21a is ___________________________.

• 7a(a – 21)

• 7a(a – 3)

• 7a(a +3)

• 7a

Expressions can be factorised by splitting middle term by which identity?

• (x + a)(x + b) = x² + (a + b)x + ab

• (a + b)² = a² + 2ab + b²

• (a + b)(a – b) = a² – b²

• (a - b)² = a² - 2ab + b²

The factors of 9x – 18x² are __________________

• 9(x – 2x)

• 9x(1 – 2x)

• -9x

• 9x(1 – 3x)

121x² – 625y² is equal to ____________________

• (11x – 25y)²

• (25x – 11y)²

• (11x + 25y) (11x - 25y)

• (25x + 11y) (25x - 11y)

25a² – 50ab is equal to

• 25a (a – 2b)

• 5a (5a – 10b)

• 50a (2a – b)