engineering recuitment NCRTC Station Controller Mock Test 2021 Mathematics Quadratic Equations

यदि एक द्विघाती समीकरण ax2 + bx + c = 0 के मूल α और β हैं, तो मूल α2 और β2 वाला द्विघाती समीकरण क्या है?

1
x2 - (b2 - 2ac) x + c = 0
2
a2x2 - (b2 - 2ac) x + c = 0
3
ax2 - (b2 - 2ac) x + c2 = 0
4
a2x2 - (b2 - 2ac) x + c2 = 0
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