Question
One root of $\mathrm{k}^{2}-9 \mathrm{k}+14=0$ exceeds the other root by a certain number, the number is(a) 2(b) 4(c) 7(d) 5
Step 1
According to the problem, one root exceeds the other by a certain number. Let's assume $\alpha$ is the larger root. So, $\alpha = \beta + d$, where $d$ is the difference between the roots. Show more…
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