Assume the statement p is true. Cite the reasons logically until you reach a contradiction.
Point out that the desired conclusion must be true because the contradiction
proves the temporary assumption false.
• Identify the statement you want to prove. Assume temporarily that this
statement is false (by negation) by assuming that its opposite is true.
Use what you know about p and other facts as necessary to deduce that
another statement
q
is true, that is show pq (if p then q) is true.​

easy math just plug in a and b

step-by-step explanation:

care to share were the trapezoid shown is ?

answer: c

(2, -4)

goes 7 to the

(9, 4)

easy

hello from mrbilldoesmath!

answer:   (7x + 6y) ( 49x^2 - 42xy + 36y^2)

discussion:

in general, the factorization of a^3 + b^3 is

a^3 + b^ 3 = (a + b) ( a^2 - ab + b^2)

in our case note that 343 = 7^3 and 216 = 6^3 so the equation becomes:

343x^3 + 216y^3 = (7x)^3 + (6y)^3

if you think of a (above) as 7x and b as 6y the factorization becomes

343x^3 + 216y^3 =

((7x + 6y) (   (7x)^2 - 7x*6y + (6y)^2)   =

(7x + 6y) ( 49x^2 - 42xy + 36y^2)

you,

mrb

(a + b) (a^2 - a b + b^2)