3 years ago

3a + 4b - 2a +3 - 7

Mathematics

2 answers:

wel3 years ago

5 0

Answer:

a + 4b - 4

Step-by-step explanation:

Step 1: Write out expression

3a + 4b - 2a + 3 - 7

Step 2: Combine like terms (a)

a + 4b + 3 - 7

Step 3: Combine like terms (constants)

a + 4b - 4

otez555 [7]3 years ago

4 0

Answer:

1a+4b-4

a+4b-4

Step-by-step explanation:

3a-2a= 1a or just a

4b=4b

-7+3= -4

1a+4b-4

a+4b-4

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Solve for all values of x by factoring.<br> x^2 + 4x – 30 = -3x

vichka [17]

Answer:

${x}^{2} + 4x - 30 = - 3x \\{x}^{2} + 7x - 30 = 0 \\ {x}^{2} - 3x + 10x - 30 = 0 \\ x(x - 3) + 10(x - 3) = 0 \\ (x - 3)(x + 10) = 0 \\ \boxed{x = 3} \\ \boxed{x = - 10}$

<h3><em><u>x=3 or x=-10</u></em> is the right answer.</h3>

7 0

3 years ago

Raj fully simplified the polynomial and then put it in standard form with the last term being 6y3. 2x2y + 8x3 – xy2 – 2x3 + 3xy2

JulijaS [17]

Original polynomial:

2x^2 y + 8x^3 - xy^2 - 2x^3 + 3xy^2 + 6y^3

Order the polynomial in ascending order of y

8x^3 - 2x^3 + 2x^2y + 3xy^2 - xy^2 + 6y^3

Add up the similar terms:

6x^3 + 2x^2y + 2xy^2 + 6y^3

Thats is the polynomial Raj ended up with.

And the first term is 6x^3.

Answer: 6x^3

3 0

3 years ago

How do I answer this question

Len [333]

I hope this helps you