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5. Factorise:(1) 4x* +9y2 + 167² + 12xy - 24yz - 16xZ

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(a+b-c)^2=a^2+b^2+c^2+2ab-2bc-2cahence put a=2x b=3y and c=-4zthen(2x+3y-4z)^2=4x^2+3y^2+4z^2+12xy-24yz-16xzhence(2x+3y-4z)(2x+3y-4z)



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