The polynomial x3 + 64 is an example of a - sum of cubes, difference of cube, sum of a cube, difference of squares, perfect squares of trinomial?

we are given

we can write it as

so, we can write it as

so, we can see that

this is sum of two cubes

so, sum of cubesAnswer

b) yes

step-by-step explanation:

let the statements be named as,

statement 1: if the power has been cut, then the refrigerator does not work.

statement 2: the refrigerator does not work.

conclusion: the power has been cut

now, 'law of detachment states that if we have the statements given as,

1. if p, then q.

2. p

then, we get the true statement or conclusion as q'.

thus, on comparing, we get that,

p: if the power has been cut.

q: the refrigerator does not work.

so, the argument is true by the law of detachment.