ZanariaS572365 ZanariaS572365

28-10-2022
Mathematics

contestada

27 squared = 729, and i have to use (a + b) sqaured = a sqaured + 2ab + b squared

Respuesta :

AlcidesF30973 AlcidesF30973

28-10-2022

27² = 729

Using the form;

(a + b)² = a² + 2ab + b²

we can break 27 into (20 + 7)

So that we have;

(20 + 7)² = 20² + 2(20)(7) + 7²

= 400 +280 + 49

=729

Answer Link

Otras preguntas

If a/b = c/d , b ≠ 0, and d ≠ 0, then ad = ______ by the Means-Extremes Product Property.

Help! Please???The weather on the coast of Virginia is probably warm and dry. A cold front would likely bring rain or rainstorms. Since early summer is warm or

Someone Please help . I have no idea how to do this

Some people have freckles, and some people do not have freckles. If a child has freckles, at least one parent has freckles. However, the child may have a siblin

what is this white blood cells consumes microorganisms

n addition to replacing the president if necessary, it's the duty of the vice president to A. serve as liaison to the judicial branch. B. review laws before the

how did these teachings make buddhism appealing to people of all casts?

which cash crop was the largest export from the south just before the civil war? a. cotton b. sugar c. rice d. tabacco

how do you write this in standard form? (6-7i)/(1-2i)

Leslie's book store has 48% off sale on all of its merchandise. How much is the discount on a book that originally cost 36.45 dollars. Show all work.