If x = i - 1 , then x2 + 2x + 2 =

If <tex>x = i - 1</tex>, then <tex>x2 + 2x +

Multiple choice — select the best answer

Ai
B2i + 4
C4 + 2i
D-2
E0

✓ Correct answer: E. 0 You're dealing with imaginary numbers here, so your calculator won't be much use. To solve this problem, just plug (i - 1) into the expression in place of x and do the math.

.q-expl{display:block!important}.q-opt[data-idx="4"]{border-color:#16a34a;background:#f0fdf4}.q-opt[data-idx="4"] .oltr{background:#16a34a;color:#fff}.q-opt{cursor:default!important;pointer-events:none}

Keep practising. Use the free DAT PDF, watch the YouTube walkthrough, or unlock all 10 web questions with timed mock exams.

Free PDF Video walkthrough

← Previous Next → 🎲 Random question ↩ Back to all questions

Keep practising

If <tex>x = i - 1</tex>, then <tex>x2 + 2x + 2 =</tex>

Related questions

Free practice here. Timed mocks when you are ready.