Question

9. Simplify the expression and find its value when
x= -3 and y = +5:
20x2 + 2x) + 5 - xy + y2​

Answer 1

Answer:

320

Step-by-step explanation:

20×2+2x ×5-xy+y2

40+2×-3 ×5-(-3×5)(5×2)

40-6×5+15×10

34×5+15×10

170+150

320