5p2-6q2-7r2+6p2-5q2+2r2
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Answer:
the answer is 11p2 - 11q2 - 5r2.
Step-by-step explanation:
=5p2-6q2-7r2-6p2-5q2+2r2
=5p2+6p2-6q2-5q2-7r2+2r2
=11p2-11q2-5r2.
hope its help you and mark me brainliest!!!
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