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REY [17]
3 years ago
11

What is simplified when -3(2x-y) + 2y+2(x+y) ?

Mathematics
1 answer:
S_A_V [24]3 years ago
4 0

Answer: -x + 4y

Step-by-step explanation:

-3(2x-y) + 2y+2(x+y)

-6x + 3y + 2y + 2x + 2y

-6x + 2x +3y + 2y + 2y

-6x + 5x + 4y

-x + 4y

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10. Write (2x + 1)(x - 3)(x - 2) in standard form.
Leto [7]

Answer:

2x^3-9x^2+7x+6

Step-by-step explanation:

The standard form of a polynomial is a method of writing a polynomial such that the terms are organized by degrees. In essence, the first term, or the left-most term has the highest degree or largest exponent. The right-most term or last term has the lowest degree or smallest exponent. One is given an expression in factored form. Distribute, multiply every term by another in the parenthesis, then simplify. Repeat this process until there are no more factored terms. Finally, rewrite the expression in standard form.

(2x+1)(x-3)(x-2)

Distribute,

(2x+1)(x-3)(x-2)

((2x)(x)+(-3)(2x)+(1)(x)+(1)(-3))(x-2)

Simplify,

((2x)(x)+(-3)(2x)+(1)(x)+(1)(-3))(x-2)

(2x^2-6x+x-3)(x-2)

(2x^2-5x-3)(x-2)

Distribute,

(2x^2-5x-3)(x-2)

(2x^2)(x)+(-5x)(x)+(-3)(x)+(-2)(2x^2)+(-2)(-5x)+(-3)(-2)

Simplify,

(2x^2)(x)+(-5x)(x)+(-3)(x)+(-2)(2x^2)+(-2)(-5x)+(-3)(-2)

2x^3-5x^2-3x-4x^2+10x+6

2x^3-9x^2+7x+6

This polynomial is already in standard form, thus there is no need to reorganize it. The leading term or the left-most term has the highest degree, three, the succeeding terms are in respective order of decreasing exponents.

8 0
3 years ago
Im bored so pick a # 1 or 2? if u get it right then u get a brainlist!!
Bond [772]
2 ok I am doing this cause I can not answer with out 20 words so that should be good now
4 0
3 years ago
HELP
Komok [63]

Answer: 1/8 is left over.

Step-by-step explanation:

Tess already at half of the pizza, and Shawn ate a quarter of the pizza.

1/2 + 1/4= 3/4

There is a quarter of pizza remaining, but Molly ate half of that quarter (1/8). There is only 1/8 of pizza left.

5 0
4 years ago
Read 2 more answers
Find m< AFE and include working out.
andreyandreev [35.5K]

Answer:

∠ AFE = 80°

Step-by-step explanation:

Since BD is a straight line , then

∠ AFB + ∠ AFE + ∠ EFD = 180°, that is

50° + ∠ AFE + 50° = 180°

100° + ∠ AFE = 180° ( subtract 100° from both sides )

∠ AFE = 80°

3 0
3 years ago
Liz has hiking a trail that is 0.8 miles long she traveled 2 tenths by herself the rest she travels with her friends how far doe
liubo4ka [24]
I think it she hikes 0.2 miles by herself.
5 0
3 years ago
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