Question

a) (x+2)²+(x-3)²+(x+4)(x-4)​

Answer 1

Resposta:

${3x}^{2} - 2x - 3$

Explicação passo-a-passo:

$(x + 2)^{2} + (x - 3)^{2} + (x + 4) \times (x - 4) \\ {x}^{2} + 4x + 4 + {x}^{2} - 6x + 9 + {x}^{2} - 16 \\ {3x}^{2} - 2x - 3$

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$\LARGE\mathscr{{Attard}}$