What questions should a historian ask to determine whether a source is credible? Select three options. Is it relevant to the subject or event? Is the writing style clear and professional? Does it contain information that is outdated? Is the author an expert on the subject or event? Does it explain a version of how the event occurred?

answer

explanation

the given equation is

we can rewrite this as:

let

then the equation becomes:

the factors of 8 that sum up to -9 are {-1,-8}

we split the middle term with these factors to obtain,

we factor by grouping to obtain:

apply the zero product property to get:

but

the phoenix dragon in the persian art reflect the alebrijes artistic styles

a.) are both appointed for life