Previous Year Papers

Download Solved Question Papers Free for Offline Practice and view Solutions Online.

Test Series

Take Zigya Full and Sectional Test Series. Time it out for real assessment and get your results instantly.

Practice and master your preparation for a specific topic or chapter. Check you scores at the end of the test.

(i) (x - 2y - 3z)²

= {(x) + (- 2y) + (- 3z)}²
= (x)² + (- 2y)² + (- 3z)² +2(x) (- 2y) +2(-2y)(-3z)+2(-3z)(x)
= x² + 4y²+ 9z²- 4xy + 12yz - 6zx

left parenthesis ii right parenthesis space space space space left parenthesis straight y space minus space square root of 3 right parenthesis squared space space space space space space space space space space space space space space space space equals space straight y squared minus 2 left parenthesis straight y right parenthesis space left parenthesis square root of 3 right parenthesis plus left parenthesis square root of 3 right parenthesis squared space space space space space space space space space space space space space space space space space equals space straight y squared minus 2 square root of 3 straight y plus 3

321 Views

182. Factorise the following using appropriate identities:

9x² + 6xy + y²

191 Views

183. Factorise the following using appropriate identities:

4y² - 4y + 1

148 Views

184. Factorise the following using appropriate identities:

straight x squared minus straight y squared over 100

159 Views

185. Expand each of the following using suitable identities:
(x + 2y + 4z)²

211 Views

186. Expand each of the following using suitable identities:
(- 2x + 3y + 2z)²

182 Views

187. Expand each of the following using suitable identities:
(- 2x + 3y + 2z)²

123 Views

188. Expand each of the following using suitable identities:
(3a -7b - c)²

166 Views

189. Expand each of the following using suitable identities:
(- 2x + 5y - 3z)²

303 Views

190. Expand each of the following using suitable identities:

open square brackets 1 fourth straight a minus 1 half straight b plus 1 close square brackets squared

229 Views