Question

Produto de uma soma indicada por uma diferença:
1-Resolva:
a) (x-7)(x+7) d) (5x+8)(5x-8) g) (3ª+ 8b)²
b) (a+20)(a-20) e) (4x-9)² h) (x – 2/3)² c) (x+4y)(x-4y) f) (5x+y)(5x-y)
2- Resolva:
a) (a-3)² c) (y-1/3)²
b) (4x-7)² d) (x-2b)²
3- Resolva:
a) (a+5)² c) (5y+1/2)²
PLSSSSS PFV

Answer 1

Resposta:

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