Question

me ajudem é urgente pra amanhã!

Answer 1

(x + 7)² = (x + 7)(x + 7) = x² + 7x + 7x + 49 = x² + 14x + 49
(5 + 2m)² = (5 + 2m)(5 + 2m) = 25 + 10m + 10m + 4m² = 4m² + 20m + 25
(a + 3x)² = (a + 3x)(a + 3x) = a² + 3xa + 3xa + 3x² = a² + 6xa + 3x²
(10x + y)² = (10x + y)(10x + y) = 100x² + 10xy + 10xy + y² = 100x² + 20xy + y²
(5x² + 1)² = (5x² + 1)(5x² + 1) = 25x^4 + 5x² + 5x² + 1 = 25x^4 + 10x² + 1
(11 + pq)² = (11 + pq)(11 + pq) = 121 + 11pq + 11pq + pq² = 121 + 22pq + pq²
(x + 0.5)² = (x + 0.5)(x + 0.5) = x² + 0.5x + 0.5x + 0.25 = x² + 1x + 0.25
(x + 1/2)² = (x + 1/2)(x + 1/2) = x² + 1/2x + 1/2x + 1/4 = x² + 1x + 1/4