Step-by-step explanation:
check your question again
Since x is the x-intercepts, that means x'=x" =6 or in other word the discriminante ( Δ = b² 4ac) =0. Answer is A
Answer:
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Step-by-step explanation:
<u><em>Explanation</em></u>
Given

By using algebra formulas




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<u><em>Final answer:-</em></u>
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