Question

10) Add 7x2 -8,2x2+1 and 5 - x2

11) CP= Rs. 1700. Profit= 5% find SP​

Answer 1

Answer:

(a) 8x² - 2

(b) SP : ₹ 1785

Step-by-step explanation:

$7 {x}^{2} - 8 \\ 2 {x}^{2} + 1 \\ - {x}^{2} + 5 \\ - - - - - \\ 8 {x}^{2} - 2 \\ - - - - - \\ \\Profit = Cost \: \: Price \times Profit \: \: \% \\ = ₹ \: 1700 \times \frac{5}{100} \\ = \underline{ \underline{₹ \: 85}} \\ \\ Selling \: \: Price = Cost \: \: Price + Profit \\ = ₹ \: 1700 + ₹ \: 85 \\ = \underline{ \underline{₹ \: 1785}}$