Substract 4p2+5q2-6r2+7 from 3p2-4q2-5r2-6
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=(4p2 +5q2 -6r2+7) -(3p2 -4q2 - 5r2 -6)
=4p2 + 5q2 - 6r2 + 7 -3p2 + 4q2 + 5r2 + 6
=p2 +9q2 -r2 +13
=p2 +9q2 -r2 +13
=4p2 + 5q2 - 6r2 + 7 -3p2 + 4q2 + 5r2 + 6
=p2 +9q2 -r2 +13
=p2 +9q2 -r2 +13
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hii buddy/mate
Step-by-step explanation:
answer is -p^2-9q^2+r^2-13 ....
hope it helps..!
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