Question

155. На координатном луче отметили числа 5, 12, a, bис (рис. Сравните: 1) а и 5; 2) 12 и b; 3) аи 12; 4) сиа, Рис. 64 о 5 b 12 с​

Answer 1

Ответ:

Сверху прекреплён ответ

Answer 2

Let's break down the expressions you've provided:

1. $5 + a^4 + a$
2. $(a - b)(a + b)$
3. $\frac{7x^3y}{1.5x^2y}$

Let's simplify each expression:

1. $5 + a^4 + a$: This expression is already simplified. It doesn't factor further.

2. $(a - b)(a + b)$: This is the difference of squares, which can be factored as $a^2 - b^2$. $(a - b)(a + b) = a^2 - b^2$

3. $\frac{7x^3y}{1.5x^2y}$: To simplify the fraction, you can cancel out common factors in the numerator and denominator. In this case, $xy$ cancels out. $\frac{7x^3y}{1.5x^2y} = \frac{7x^{3-2}}{1.5} = \frac{7x}{1.5}$ (you can simplify this fraction further if needed).

If you have any specific values for $a$, $b$, $x$, or $y$, you can substitute those values into the expressions to get numerical results.