Difference between revisions of "1958 AHSME Problems/Problem 23"
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== Problem == | == Problem == | ||
− | If, in the expression <math> x^2 | + | If, in the expression <math> x^2 - 3</math>, <math> x</math> increases or decreases by a positive amount of <math> a</math>, the expression changes by an amount: |
− | <math> \textbf{(A)}\ {\pm 2ax | + | <math> \textbf{(A)}\ {\pm 2ax + a^2}\qquad |
\textbf{(B)}\ {2ax \pm a^2}\qquad | \textbf{(B)}\ {2ax \pm a^2}\qquad | ||
− | \textbf{(C)}\ {\pm a^2 | + | \textbf{(C)}\ {\pm a^2 - 3} \qquad |
− | \textbf{(D)}\ {(x | + | \textbf{(D)}\ {(x + a)^2 - 3}\qquad\\ |
− | \textbf{(E)}\ {(x | + | \textbf{(E)}\ {(x - a)^2 - 3}</math> |
− | |||
== Solution == | == Solution == |
Revision as of 23:20, 13 March 2015
Problem
If, in the expression , increases or decreases by a positive amount of , the expression changes by an amount:
Solution
See Also
1958 AHSC (Problems • Answer Key • Resources) | ||
Preceded by Problem 22 |
Followed by Problem 24 | |
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All AHSME Problems and Solutions |
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