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sum of the coefficients when two quadratics are multiplied

It's easy to figure it out! Just assume x=1 and evaluate the given expression. That's it.

Example: Sum of the coefficients of: ( 3x^2 +4x + 1) ( x^2 + 2x +5) is just (3 + 4 + 1)( 1 + 2 + 5) = 64. We needn't expand the polynomial

Note by Raghunathan N.
3 years ago

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  Easy Math Editor

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[example link](https://brilliant.org)example link
> This is a quote
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    # I indented these lines
    # 4 spaces, and now they show
    # up as a code block.

    print "hello world"
# I indented these lines
# 4 spaces, and now they show
# up as a code block.

print "hello world"
MathAppears as
Remember to wrap math in \( ... \) or \[ ... \] to ensure proper formatting.
2 \times 3 \( 2 \times 3 \)
2^{34} \( 2^{34} \)
a_{i-1} \( a_{i-1} \)
\frac{2}{3} \( \frac{2}{3} \)
\sqrt{2} \( \sqrt{2} \)
\sum_{i=1}^3 \( \sum_{i=1}^3 \)
\sin \theta \( \sin \theta \)
\boxed{123} \( \boxed{123} \)

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