Question

${a}^{2} - {9b}^{2} + {4c}^{2} - {25d}^{2} - 4ac + 30bd$

Answer 1

Answer:

${a}^{2} - {9b}^{2} + {4c}^{2} - { 25d}^{2} - 4ac + 30bd$ Get the answers you need, now!

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Step-by-step explanation:

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