Question

(м+1)(м+3)-(1-7м)(1+7м)-(2-м)

Answer 1

Ответ: 50М2+5м

Объяснение:

Answer 2

(м+1)(м+3)-(1-7м)(1+7м)-(2м)

м^2+3м+м+3-(1-49м^2)-2м

м^2+3м+м+3-1+49м^2-2м

50м^2+2м+2

Answer 3

To simplify the expression (м+1)(м+3)-(1-7м)(1+7м)-(2-м), let's break it down step by step:

Step 1: Expand the first term (м+1)(м+3) (м+1)(м+3) = м(м+3) + 1(м+3) = м² + 3м + м + 3 = м² + 4м + 3

Step 2: Expand the second term (1-7м)(1+7м) (1-7м)(1+7м) = 1(1+7м) - 7м(1+7м) = 1 + 7м - 7м - 49м² = 1 - 49м²

Step 3: Simplify the third term (2-м) (2-м) = 2 - м

Now, let's substitute these simplified expressions back into the original expression and combine like terms:

(м+1)(м+3)-(1-7м)(1+7м)-(2-м) = (м² + 4м + 3) - (1 - 49м²) - (2 - м) = м² + 4м + 3 - 1 + 49м² - 2 + м = м² + 49м² + 4м + м + 3 - 1 - 2 = 50м² + 5м

So, the simplified expression is 50м² + 5м.