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Basic Math
Arithmetic
Fractions & Decimals
Ratios & Proportions
Percentages
Basic Number Theory
Pre-Algebra
Integers & Absolute Values
Factors & Multiples
Prime Factorization
Basic Equations & Inequalities
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Polynomials & Factoring
Functions & Graphs
Systems of Equations
Trigonometry
Trigonometric Functions
Trigonometric Identities & Equations
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Calculus
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Example
3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b
Question
$$\sqrt { 525 }$$
Evaluate
$5\sqrt{21}\approx 22.912878475$
Solution Steps
Factor $525=5^{2}\times 21$. Rewrite the square root of the product $\sqrt{5^{2}\times 21}$ as the product of square roots $\sqrt{5^{2}}\sqrt{21}$. Take the square root of $5^{2}$.
$$5\sqrt{21}$$
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