Please Show Your Solution To Me Using Foil Method Please Help Me:))))

Please show your solution to me using foil method please help me:))))

 

Answer and Step-by-step explanation:

1. (2h+7)(2h−7)

=(2h)(2h)+(2h)(−7)+(7)(2h)+(7)(−7)

=4h²−14h+14h−49

=4h²−49

2.(8−3x)(8+3x)

=(8)(8)+(8)(3x)+(−3x)(8)+(−3x)(3x)

=64+24x−24x−9x²

=−9x²+64

3.(x+3)(x−3)

=(x)(x)+(x)(−3)+(3)(x)+(3)(−3)

=x²−3x+3x−9

=x²−9