P এর মান কত হলে একটি পূর্ণবর্গ হবে?
Created: 1 year ago |
Updated: 9 months ago
best des
64 + 4x² - px
= 64-px+4²
=8²- 2. 8. 2x + (2x)22 [x এর সহগগুলো গুন করলে আমরা ৩২ পাই যা P এর নির্নেয় মান]
= (8-2x)²
Here,
c= 64, b= -p, a= 4
b^2-4ac = 0
Or, (-p)^2 - 4×4×64 = 0
Or, p^2= 4×4×64
Or, p= 2×2×8
So, p= 32
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