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Expand the expression (5x + 3)2, and write the result in standard form.O A.25x² + 30x+9OB.25x² +24OC.25x² +9O D.25x² + 15x+9
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Expand the expression (5x + 3)2, and write the result in standard form.O A.25x² + 30x+9OB.25x² +24OC.25x² +9O D.25x² + 15x+9

Expand the expression (5x + 3)2, and write the result in standard form.O A.25x² + 30x-example-1
User Alentejo
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1 Answer

12 votes
12 votes

Remember that


(a+b)^2=a^2+2ab+b^2

In this problem we have


(5x+3)^2=(5x)^2+2(5x)(3)+3^2=25x^2+30x+9

The answer is the option A

User MMoovs
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