√12×(4×√15−√21)+3×√28=?
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Answered by
0
Answer:
45
Step-by-step explanation:
Answered by
1
Answer:
45
Step-by-step explanation:
root 12 × (4 × 3 root 5-3root7) + 3 ×4root 7
4root 3× (12 root 5 -3root7 ) +12 root7
=45
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