15 points plz help the answer is in the question answer for brainliest

Multiply. −2x(6 x 4 −7 x 2 +x−5) express the answer in standard form. enter your answer in the box.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis