You are factoring x² + 11x - 26.
What do the signs of the terms tell you about the factors?

Hi there!

The negative in front of 26 represents that one of the factor is negative and one of the factor is positive. In other words: (x+13)(x-2), x= -13, 2

the positive 11x represents that 2 must be (x-2) while 13 has to be (x+13)

well what did you do it matters what you did : )

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places