Write your answer in standard form. (6x+7) (x-8) a. 6x^2-24x-56
b. 6x^2+7x-56
c. 6x^2+21x+56
d. 6x^2-41x-56

(w+3)(w-3)
a. w^2+3w-3
b. w^2
c. w^2-9
d. w^2+w

First one is d and second one is c

Step-by-step explanation:

(6x+7)(x-8)

(6x)(x) = 6x^2

(6x)(-8) = -48

(7)(x) = 7x

(7)(-8) = -56

Add all like terms together and you get choice d.

(w+3)(w-3)

(w)(w) = w^2

(w)(-3) = -3w

(3)(w) = 3w

(3)(-3) = -9

Add all like terms together and you get choice c

(6x+7)(x-8)=6x^2-41x-56

Step-by-step explanation:

(6x+7)(x-8)

Apply FOIL method: (a+b)(c+d)=ac+ad+bc+bd= a=6x, b=7 c=x, d=-8=6xx+6x(-8)+7x+7(-8)

Apply minus & plus rules: =6xx-6(8x+7x-7)8

simplify: 6xx-6(8x+7x-7)8=6x^2-41x-56

we know that

applying the law of sines

°

so

∠j=18°

∠k=29°

∠l=180-(18+29)=133°

the answer part a) is

the measure of angle k is  ≈29°

part b)  the measure of angle k could also be

(180-29)=151°

so

∠j=18°

∠k=151°

∠l=180-(18+151)=11°

the answer part b) is

the measure of angle k could also be 151°

read more on -

the entire expression should be subtracted from 30. to subtract the quantity, distribute the negative sign, which changes the signs on the terms. so, the –2 changes to positive and gets added to 30 instead of subtracted from it.

hope this ! ^w^