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SCORPION-xisa [38]
3 years ago
15

From 4a + 7b - 12c subtract 8a - 9b + 12d.

Mathematics
1 answer:
ollegr [7]3 years ago
8 0

Answer:

-4a + 16b -12c -12d

Step-by-step explanation:

Given:  From 4a + 7b - 12c subtract 8a - 9b + 12d.

We are given two algebraic expression. We can add/subtract only the like terms.

(4a + 7b  -12c) - (8a -9b +12d)

Now we have distribute the negative sign inside the second expression (8a -9b +12b). If we do, the sign changes.

4a + 7b -12c -8a + 9b -12d                                          [Sign rule: -(-) = +; -(+) = -]

Now we can combine the like terms

= (4a - 8a) +(7b + 9b) -12c -12d

= -4a + 16b -12c -12d

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3 years ago
Complete each trinomial such that it can be rewritten in the form a(x+b)^2 or a(x-b)^2
scoundrel [369]

The value of the expression  in the form a(x+b)^2 is 1.5(x+2)^2 - 4

<h3>Vertex Form of a quadratic expression</h3>

Given the quadratic expressions

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Using the completing the square method

The coefficient of x = 4

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The equation is expressed as:

f(x) = 1.5(x^2+4x+ 4) - 4

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Hence the value of the expression  in the form a(x+b)^2 is 1.5(x+2)^2 - 4

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6 0
2 years ago
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Step-by-step explanation:

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4 0
3 years ago
In the figure below what is the value of x?
vazorg [7]

Answer:

The value of x is 106

Step-by-step explanation:

Let us solve the question

In the given figure

∵ The triangle in the given figure has two sides equal

→ That means the triangle is an isosceles triangle

∴ The triangle is isosceles

∵ In the isosceles triangle, the base angles are equal in measures

∵ The measure of one base angle is 37°

∴ The measure of other base angle is 37°

→ The sum of the measures of the interior angles of a Δ is 180°

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→ Add the like terms

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→ Subtract 74 from both sides

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∴ x = 106

∴ The value of x is 106

7 0
2 years ago
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