What values are needed to make each expression a perfect square trinomial?
x2 + 4x +
x2 - 10x +
Previous Activity

4;

25

Step-by-step explanation:

x² + 2(x)(2) + 2²

x² + 4x + 4

x² - 2(x)(5) + 5²

x² - 10x + 25

step-by-step explanation:

there is a formula i can give you:

it is r^2*n*sin(360/n) divided by 2 where r represents the "radius" and n is the number of sides.

plug them in:

(10sqrt(3))^2*6*sin(360/6) divided by 2

100*3*6*sin(60) divided by 2

900*sin(60)

900*sqrt(3)/2

450*sqrt(3)

approx is 779.4 cm^2

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0