Question

x=3,y=5,z=7(4z²+3x²-2xy-2yz)​

Answer 1

Answer:

$4( {7}^{2}) + 3 ({3}^{2} ) - 2(3 \times 5) - 2(5 \times 7)$

$4(49) + 3(9) - 2(15) - 2(35)$

$196 + 27 - 30 - 70$

$223 - 100$

$123$

123 is the answer

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Answer 2

Answer:

here is your answer

Step-by-step explanation:

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