Answer the question.Explain how (a + b)2 differs from a2 + b2 by expanding (a + b)2.

What will be an ideal response?


Expanding (a + b)2, one gets (a + b)2 = a2 + 2ab + b2, which differs from a2 + b2 by the term 2ab.

Mathematics

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Provide an appropriate response.In right triangle ABC with right angle C, find the indicated part. Round to four significant digits. Find a if A = 43° and c = 18 m.

Fill in the blank(s) with the appropriate word(s).

Mathematics

Answer the question.The points (-3, 6), (0, 9), ( 2, 1), and ( 5, 4) are the vertices of a quadrilateral. Is the quadrilateral a rectangle?

A. Yes B. No

Mathematics

Solve the equation.x4 - 8x2 - 9 = 0

A. {3i, -3i, i, -i} B. {3, -3, 1, -1} C. {3, -3, i, -i} D. {1, -1, 3i, -3i}

Mathematics

Use a graphing calculator to graph the polynomial and use the graph to estimate its range.-6x2 + 10

A. [-6, ?) B. [10, ?) C. (-?, ?) D. (-?, 10]

Mathematics