Factorise:
$49{\mathrm{a}}^2+70\mathrm{a}\mathrm{b}+25{\mathrm{b}}^2$

Important Questions on Polynomials

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 3

Factorise:
$\frac{25}{4}{\mathrm{x}}^2-\frac{{\mathrm{y}}^2}{9}$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 4

Expand: ${[3\mathrm{a}+4\mathrm{b}+5\mathrm{c}]}^2$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 5

Expand: ${[4\mathrm{a}-2\mathrm{b}-3\mathrm{c}]}^2$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 6

Factorise: $4{\mathrm{x}}^2+{\mathrm{y}}^2+{\mathrm{z}}^2-4\mathrm{x}\mathrm{y}-2\mathrm{y}\mathrm{z}+4\mathrm{x}\mathrm{z}$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 7

Expand:
${(3\mathrm{a}+4\mathrm{b})}^3$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 7

Expand:
${(5\mathrm{p}-3\mathrm{q})}^3$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 8

Using suitable identities, evaluate:
${\left(103\right)}^3$

MEDIUM

9th CBSE

IMPORTANT

Full Marks Mathematics 9>Chapter 2 - Polynomials>TEST YOUR SKILLS>Q 8

Using suitable identities, evaluate:
${\left(999\right)}^3$