Identify binomials: Identify the binomials to be multiplied.We have two binomials: (2x−9) and (x+10).
Apply distributive property: Apply the distributive property (also known as the FOIL method) to multiply the binomials.First terms: 2x×x=2x2Outer terms: 2x×10=20xInner terms: −9×x=−9xLast terms: −9×10=−90
Combine like terms: Combine like terms from the multiplication.Combine 20x and −9x to get 11x.So, the expression becomes 2x2+11x−90.