${\mathrm{a}}^2-{\mathrm{b}}^2$ is equal to 

Important Questions on Algebraic Expressions, Identities and Factorisation

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 17

Common factor of  $17\mathrm{abc},34{\mathrm{ab}}^2,51{\mathrm{a}}^2\mathrm{b}$ is 

MEDIUM

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 18

Square of $9 \mathrm{x}-7 \mathrm{x} \mathrm{y}$ is

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 19

Factorised form of $23 \mathrm{x} \mathrm{y}-46 \mathrm{x}+54 \mathrm{y}-108$ is

MEDIUM

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 20

Factorised form of ${\mathrm{r}}^2-10\mathrm{r}+21$ is

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 21

Factorised form of ${\mathrm{p}}^2-17\mathrm{p}-38$ is

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 22

On dividing $57{\mathrm{p}}^2\mathrm{qr}$  by $114 \mathrm{pq},$ we get

MEDIUM

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 23

On dividing $\mathrm{p}(4 {\mathrm{p}}^2-16)$ by $4 \mathrm{p}(\mathrm{p}-2),$ we get

EASY

8th CBSE

IMPORTANT

NCERT Exemplar Mathematics - Class 8>Chapter 7 - Algebraic Expressions, Identities and Factorisation>Exercise>Q 24

The common factor of $3$$ab$ and $2\mathrm{cd}$ is