Evaluate
\left(9t+5\right)^{2}
Expand
81t^{2}+90t+25
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\left(9t+5\right)^{2}
Multiply 9t+5 and 9t+5 to get \left(9t+5\right)^{2}.
81t^{2}+90t+25
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(9t+5\right)^{2}.
\left(9t+5\right)^{2}
Multiply 9t+5 and 9t+5 to get \left(9t+5\right)^{2}.
81t^{2}+90t+25
Use binomial theorem \left(a+b\right)^{2}=a^{2}+2ab+b^{2} to expand \left(9t+5\right)^{2}.
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