Solve
x2 + x - 56 = 0

The answer would be 2x1=x so x would be 2

Step-by-step explanation:

x = 7, - 8

Step-by-step explanation:

x^2 + x - 56 = 0

x^2 + 8x - 7x - 56 = 0

x ( x + 8 ) - 7 ( x + 8 ) = 0

( x - 7 ) ( x + 8 ) = 0

x - 7 = 0

x = 7

x + 8 = 0

x = - 8

whole numbers.

step-by-step explanation:

we are given the average monthly rainfall (in millimeters) model r(m) for the years 1900-2009 as a function of the month number m.

as we can see m is taken for the number of months for years 1900-2009.

we know that number of months can't be a negative number or decimal number or a fraction.

so, the number of months could be only positive whole numbers.

therefore, whole numbers is more appropriate for the domain of r.