Simplify (x − 7)(x − 5) using the FOIL method, and identify the resulting expression in standard form.
https://prnt. sc/redzi4

First:  x^2

Outer:  -5x

Inner:  -7x

Last:  35

Final Result:  x^2 - 12x + 35

Step-by-step explanation:

Step 1:  Foil the expression

(x - 7)(x - 5)

To foil, you multiply the first my the first, the first by the second, the second by the first, and the second by the second.

(x - 7)(x - 5)

(x * x) + (x * -5) + (-7 * x) + (-7 * -5)

1 by 1     1 by 2     2 by 1     2 by 2

x^2  -  5x   -   7x  +   35

first   outer   inner   last

x^2 - 12x + 35

 x^2 - 12x + 35

∠acb = 8°

step-by-step explanation:

∠xba lies on the circle and is half the measure of the intercepted arc ax

hence

measure of arc ax = 2 × 42° = 84°

∠acb is outside the circle and is

∠acb = (arcab - arcax ), hence

∠acb = 0.5 (100 - 84) = 0.5 × 16° = 8°

what are the answer choices given for this problem?