8(1.75)3+1(3.5)2−2.5=?\frac{8(1.75)^3 + 1}{(3.5)^2 - 2.5} = ?(3.5)2−2.58(1.75)3+1=? A4 B4.5 C4.25 D5 Show answer & explanationCorrect answer: BExplanation8(1.75)3+1(3.5)2−2.5=8(74)3+1(72)2−52=3438+1394=3518394=3518×439=11726=4.5\frac{8(1.75)^3 + 1}{(3.5)^2 - 2.5}\\ = \frac{8\left(\frac{7}{4}\right)^3 + 1}{\left(\frac{7}{2}\right)^2 - \frac{5}{2}}\\ = \frac{\frac{343}{8} + 1}{\frac{39}{4}}\\ = \frac{\frac{351}{8}}{\frac{39}{4}}\\ = \frac{351}{8} \times \frac{4}{39}\\ = \frac{117}{26}\\ = 4.5 (3.5)2−2.58(1.75)3+1=(27)2−258(47)3+1=4398343+1=4398351=8351×394=26117=4.5