Question

$\frac{3.63^2-2.37^2}{3.63+2.37}=?$

• A. 2.16
• B. 1.26
• C. 12.6
• D. 612

Answer 1

Answer:

B. 1.26

$\frac{3.63^2-2.37^2}{3.63+2.37}=\frac{(3.63+2.37)(3.63-2.37)}{3.63+2.37}$

$=\frac{6\times1.26}{6}$

$=1.26$