7+2√5×(7−2√5)
You asked:
Evaluate the expression: \(7 + 2 \cdot \sqrt{5} \cdot \left(7 - 2 \cdot \sqrt{5}\right)\)
MathBot Answer:
\[7 + 2 \cdot \sqrt{5} \cdot \left(7 - 2 \cdot \sqrt{5}\right) = 7 + 2 \sqrt{5} \cdot \left(7 - 2 \sqrt{5}\right) \approx 18.30495168499705574972843136223787\]