Factorise: 9x² + 4 + 12x - a² + 2ab + b²ⓐⓝⓢⓦⓔⓡ ⓘ� – InterviewSolution

1.

Factorise: 9x² + 4 + 12x - a² + 2ab + b²ⓐⓝⓢⓦⓔⓡ ⓘⓣ ⓕⓐⓢⓣ ⓖⓤⓨⓢ

Answer»

this is the factorisation

Step-by-step EXPLANATION:

(3X)2+(2)2+2(3x)(2)

= (3x+2)(3x+2)

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