What volcanic events formed crater lake, oregon? when did they take place?

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

1.a)britain

2.b)spain

3.c)french

4.d)portugal

explanation: