Trying to find the right answer to this..

4y 2 - 4y + 1 4y 2 - 4y + 1 = (2y) 2 - 2(2y)(1)+(1) 2 = (2y - 1) 2 = (2y - 1) (2y - 1) | Using Identity II

Previous Year Papers

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

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.

181. Expand the following:

(i) (x - 2y - 3z)² (ii)

open parentheses y minus square root of 3 close parentheses squared

321 Views

182. Factorise the following using appropriate identities:

9x² + 6xy + y²

191 Views

4y² - 4y + 1

4y² - 4y + 1 = (2y)² - 2(2y)(1)+(1)²

= (2y - 1)² = (2y - 1) (2y - 1)
| Using Identity II

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