Question

$Carl starts to use the standard algorithm to solve 2{,}375\times62,375×62, comma, 375, times, 6. His work is shown below.\begin{aligned} {\overset{\blueD{y}}2}{,}\overset{4}3\overset{3}7\overset{}5&\\ \underline{{} \times \phantom{~~~~} 6}&\\ 250& \end{aligned} 2y , 34 73 5 × 6​ 250​ ​ What number should Carl replace \blueD{y}ystart color #11accd, y, end color #11accd with?$

Answer 1

Answer:

(x+1)(2x+5) -2x^2-5/x-2=3