Question

Reduce: (x+10)²+(x+3)²-2x²​

Answer 1

Respuesta:

26x + 109

Explicación paso a paso:

$(x+10)^{2} + (x+3)^{2} - 2x^{2} \\(x^{2} +(2)(x)(10) + 10^{2} ) + (x^{2} + 2(x)(3) + 3^{2}) - 2x^{2} \\x^{2} +20x + 100 +x^{2} + 6x + 9 - 2x^{2} \\x^{2} +x^{2} - 2x^{2} +20x + 6x + 100 + 9\\0 + 26x +109\\26x +109$