Respuesta :

sqdancefan

15 = 3² +2(7-4)

____

The above expression includes operations of

  • exponentiation
  • subtraction
  • multiplication
  • addition

The exponent is 2.

I know the value of this expression is 15 because

  • I designed the expression to have a value of 15
  • I get a value of 15 when I evaluate the expression
  • A reliable on-line calculator also gets a value of 15 when it evaluates the expression
Ver imagen sqdancefan
altavistard

Try this:  3*125^(1/3).  Note that 125^(1/3) = 5 and that the original expression is now 3*5, which = 15, as required.

Otras preguntas