Beginning Algebra
Solve x2=49x^2 = 49.
Solve x2=72x^2 = 72 and simplify.
Solve 2(x−3)2+10=02(x - 3)^2 + 10 = 0.
In the quadratic x2+8x+7x^2 + 8x + 7, if you split the middle term into two rectangles of equal width and place them adjacent to the xx-by-xx square, what is the area of the small corner square that you will need to add the value of in order to complete the square?
Rewrite 4x2+24x+254x^2 + 24x + 25 in vertex form by completing the square.
Which scenario best explains why using the completing the square method is preferable over using factoring or immediately using the quadratic formula?
Compute the discriminant of x2−8x+16=0x^2 - 8x + 16 = 0 and state how many real solutions the equation has.
Solve 2x2+4x+7=02x^2 + 4x + 7 = 0 and give the roots in simplest a+bia + bi form.
A small business models profit as P(x)=−x2+40x−375P(x) = -x^2 + 40x - 375, where xx is the number of thousands of units sold. For which production levels xx does the profit equal zero? Use the quadratic formula and provide solutions in exact form.
Which classification best fits the complex number −8i-8i?
Simplify −50\(\sqrt{-50}\).
Compute (2+3i2)+(5−i2)\(\left\)(2+3i\(\sqrt\)2\(\right\))+\(\left\)(5-i\(\sqrt\)2\(\right\)) and write the result in standard form.