7x(x - 2y)(x + 2y).
first take out the gcf which is 7x:
= 7x(x^2- 4y^2)
now factor the expression in the brackets:
= 7x(x - 2y)(x + 2y) (answer).
answer is a : )
option d. 6.24=156/25
a number is rational if we can write it as a fraction:
simplifying the fraction dividing the numerator and the denominator by 4: