Question

4x^​2 + 9y^​2 + 16z^​2 + 12xy - 24yz - 16xz

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Answer 1

Hi mate

please see attached formula of (a+b-c)^2:

$(2x { }^) {}^{2} + (3y) {}^{2} + (4z) {}^{2} { + 2 \times 3 \times 2} \times x \times y - 2 \times 4 \times 3 \times y \times z \times - 4 \times 2 \times 2 \times x \times z$

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

hope this helps

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