alleryx^2 - 9x + 20 = 0 ର ମୂଳଗୁଡ଼ିକର ଯୋଗଫଳ ହେଉଛି
A4
B9
C5
D20
Answer & Solution
Correct answer: B. 9
ସମୀକରଣଟି (x - 4)(x - 5) ଭାବରେ ଉତ୍ପାଦକୀକୃତ ହୁଏ, ତେଣୁ ମୂଳଗୁଡ଼ିକ ହେଉଛି 4 ଏବଂ 5, ଯାହାର ଯୋଗଫଳ 9 ଅଟେ।
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