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← JEE Main 2026 · 5 Apr · Shift 2
MathematicsSingle correct+4 / -1Question 2 of 75

JEE Main 2026 · 5 Apr · Shift 2, Mathematics question 2

Let z1,z2∈Cz_1,z_2\in\mathbb C be the distinct solutions of the equation z2+4z−(1+12i)=0z^2+4z-(1+12i)=0. Then ∣z1∣2+∣z2∣2|z_1|^2+|z_2|^2 is equal to :

Choose one option
Answer and worked solution

Official answer: D

Roots.
z=−4±16+4+48i2=−2±5+12i=−2±(3+2i),z=\frac{-4\pm\sqrt{16+4+48i}}2=-2\pm\sqrt{5+12i}=-2\pm(3+2i),
so z=1+2iz=1+2i or z=−5−2iz=-5-2i.

Sum: 5+29=345+29=34.

(D)