InterviewSolution
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InterviewSolution
| 1. |
Factorise 9 x square minus 4 y square |
| Answer» <html><body><p><img align="absmiddle" alt="\huge{\red{\mathbb{9x^2-4y^2=(3x+2y)(3x-2y) ~ as ~ (a+b)(a-b)=(a^2-b^2)}}}" class="latex-formula" id="TexFormula1" src="https://tex.z-dn.net/?f=%3Cbody%20bgcolor%20%3D%20blue%3E%5Chuge%7B%5Cred%7B%5Cmathbb%7B9x%5E2-4y%5E2%3D%283x%2B2y%29%283x-2y%29%20~%20as%20~%20%28a%2Bb%29%28a-b%29%3D%28a%5E2-b%5E2%29%7D%7D%7D" title="\huge{\red{\mathbb{9x^2-4y^2=(3x+2y)(3x-2y) ~ as ~ (a+b)(a-b)=(a^2-b^2)}}}"/></p></body></html> | |