3 years ago

Help Please... Factor the expression. 3x^2 - 192

Mathematics

2 answers:

mihalych1998 [28]3 years ago

3 0

The factored expression would look like this : 3(x+8)(x-8)

Rashid [163]3 years ago

3 0

The answer is 3(x-8)(x+8)

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What number must be added to the expression below to complete the square x^2+8x-5=15

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Answer:

Add 16 to both sides.

General Formulas and Concepts:

Pre-Alg

Equality Properties

Algebra I

Completing the Square: b/2a

Step-by-step explanation:

Step 1: Define expression

x² + 8x - 5 = 15

Step 2: Solve

Isolate x terms: x² + 8x = 20
Complete the Square: (x² + 8x + 16) = 20 + 16
Simplify: (x + 4)² = 36

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