Question

factorise
$4x { }^{2} + 9y {}^{2} + 16z {}^{2} + 12xy - 24yz - 16x {}^{2}$
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Answer 1

Answer:

( 2x+3y-4z) ( 2x+3y-4z)

Step-by-step explanation:

first write your question carefully

in last their is not -16 x square

their is -16xz

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Answer 2

the environment is consist of biosphere lithosphere, hydrosphere and atmosphere it's chief components are soil, air, water, organisms and solar energies. . . .