Sagot :
SOLUTION
Square of a binomial
- (a+b)²=a²+2ab+b²
Now , Given that a = 2x , b = 3
Substitute the values to the property
- (2x+3)² = (2x)²+2(2x)(3)+(3)²
- (2x+3)² = (4x²+12x+9)
Another way to solve the square of a binomial , id by using the foil method
- (2x+3)²
expand the binomial
- (2x+3)(2x+3)
make us of the Foil method
- 4x²+6x+6x+9
combine like terms
- 4x²+12x+9
ANSWER
- 4x²+12x+9
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