Question

A. (5+3)² + (4+x)²

B. (10x+4)² + (8+6)²

C. (100x+4)² + (9x+8)²

D. (16x+4)² + (6x+8)²

E. (11x+4)² + (6x+2)


(Preciso de cálculo)

Answer 1

A.  (5+3)^2 + (4+x)^2
8^2 + 4^2 +2 . 4 . x + x^2
64 + 16 + 8x + x^2
80 + 8x + x^2

B. (10x + 4)^2 + (8+6)^2
100x^2 + 2 . 10x . 4 + 4^2 + 14^2
100x^2 + 80x + 16 + 196
(100x^2 + 80x + 212)/4
25x^2 +  20x +  53

C. (100x + 4)^2 + (9x + 8)^2
10000x^2 + 2 . 4 . 100x + 4^2 + 81x^2 + 9x . 8 . 2 + 8^2
10000x^2 + 800x + 16 + 81x^2 + 144x + 64
10081x^2 + 944x + 80

D. (16x + 4)^2 + (6x + 8)^2
256x^2 + 2 . 4 . 16x + 4^2 + 36x^2 + 2 . 8 . 6x + 8^2
256x^2 + 128x + 16 + 36x^2 + 96x + 64
292x^2 + 224x + 80
73x^2 + 56x +  20

E. (11x + 4)^2 + (6x + 2)
121x^2 + 2 . 4 . 11x + 4^2 + 6x + 2
121x^2 + 88x + 16 + 6x + 2
121x^2 + 94x + 18