Question

1) (a+c)(b+m) 2) (x-3)(y+1) 3) (t-2)(t+7)

Answer 1

1) ab+am+bc+cm

2)xy+x-3y-3

3)t(в квадрате)+7t-2t-14=t(в квадрате)+5t-14

Answer 2

It seems like you have given three mathematical expressions in the form of (a+c)(b+m), (x-3)(y+1), and (t-2)(t+7). These expressions are in the format of multiplying two binomials. To simplify them, you can use the FOIL method, which stands for First, Outer, Inner, Last. Here's how you can apply the FOIL method to each expression:

1. (a+c)(b+m) FOIL method: First: a * b = ab Outer: a * m = am Inner: c * b = cb Last: c * m = cm

Combine the terms: ab + am + cb + cm

2. (x-3)(y+1) FOIL method: First: x * y = xy Outer: x * 1 = x Inner: -3 * y = -3y Last: -3 * 1 = -3

Combine the terms: xy + x - 3y - 3

3. (t-2)(t+7) FOIL method: First: t * t = t^2 Outer: t * 7 = 7t Inner: -2 * t = -2t Last: -2 * 7 = -14

Combine the terms: t^2 + 7t - 2t - 14

Simplify the terms further if possible. Please note that you cannot simplify expressions further unless you have specific values for the variables (a, b, c, m, x, y, t).