Identify binomial form: We need to find the square of the binomial (4r+2). This is in the form of (a+b)2, which can be expanded using the formula (a+b)2=a2+2ab+b2.
Determine a and b: Identify the values of a and b in the binomial (4r+2). Here, a=4r and b=2.
Apply expansion formula: Apply the square of a binomial formula to expand (4r+2)2.(4r+2)2=(4r)2+2(4r)(2)+22
Simplify each term: Simplify each term in the expansion.(4r)2=16r2 (since 4r×4r=16r2)2(4r)(2)=16r (since 2×4r×2=16r)22=4 (since 2×2=4)
Combine simplified terms: Combine the simplified terms to get the final answer.(4r+2)2=16r2+16r+4
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