Question

5х10в кубі +8х10 в кубі+8х10+

Answer 1

5×10×2+8×10×2+7×10+1=100+160+70+1=260+70+1=330+1=331

Answer 2

It seems there might be a typographical error in your expression. Based on the context, I assume you meant:

5x^10 + 8x^10 + 8x^10

If that's the case, we can simplify the expression by combining the like terms:

5x^10 + 8x^10 + 8x^10 = (5 + 8 + 8)x^10 = 21x^10

So, the simplified expression is 21x^10.