2x²-10xy+3xy-15y²
Add like terms.
2x²+ (-10xy+3xy) -15y²
Simplify.
2x² + (-7xy) - 15y²
Rearrange the equation.
2x²-15y²-7xy
~Hope I helped~
Step-by-step explanation:
8 goes in the place of thousands
5 goes in the place of hundred thousands
And 1 goes in the place of ten thousands
Answer:21
Step-by-step explanation: