MATHS CLASS 8 CH - 14 FACTORISATION MENTAL MATHS

Factorization can be used using the following methods and identities

(SELECT ALL THE CORRECT OPTIONS)

• Regrouping method

• a² + 2ab + b² - (a+b)²

• a² + 2ab + b² - (a-b)²

• none

The general relation for division is

Dividend = ________ * Quotient + Remainder

(Dividend = Divisor * quotient) , is the method of the relation of division when remainder =

Degree of x⁴ * 3x² + 1 is _______?

Divide 7xy by 2x

• 7x

• 7y

• 7y/2

• none

Find 110²

If we factorize 25a² + 10ab + b² and if one of the factor is (5a + b) find the other.

Simplify 66abc / 66a

Evaluate 51*49

Before performing the long division, the divisor and the dividend must be written in its _____________________

• larger form

• standard form

• shouldn't be changed

• none