Which of these is a correct expansion of (4x – 2)(2x2 + 3)?A.4x • 2x2 + 4x • 3 + 2 • 2x2 + 2 • 3B.4x • 2x2 + (–2) • 2x2 + 2x2 • 3 + (–2) • 3C.4x • 2x2 + 4x • 3 + (–2) • 2x2 + (–2) • 3
Question
Which of these is a correct expansion of (4x – 2)(2x2 + 3)?A.4x • 2x2 + 4x • 3 + 2 • 2x2 + 2 • 3B.4x • 2x2 + (–2) • 2x2 + 2x2 • 3 + (–2) • 3C.4x • 2x2 + 4x • 3 + (–2) • 2x2 + (–2) • 3
Solution
The correct expansion of (4x – 2)(2x2 + 3) is B. 4x • 2x2 + (–2) • 2x2 + 4x • 3 + (–2) • 3.
Here's the step-by-step process:
-
Distribute 4x across the terms in the second parentheses: 4x * 2x2 + 4x * 3. This gives us 8x3 + 12x.
-
Distribute -2 across the terms in the second parentheses: -2 * 2x2 + -2 * 3. This gives us -4x2 - 6.
-
Combine these results to get the final expanded form: 8x3 + 12x - 4x2 - 6.
Similar Questions
What is the expansion of (2x – 3)3
(a) Expand and simplify (2x + 3)(3x – 1)
Factor 2x3 – 12x2 + 16x.A.2(x2 + 2)(x – 4)B.2x(x + 2)(x – 4)C.2x(x – 2)(x – 4)D.2(x2 – 2)(x – 4)
4. What should be added to (3x 4) to get (9x - 7)? a)( 12 x? - 11) b) (12 x 11) c)(6x? - 11) d) (6x² 11)
Which of the following is the correct expanded form for the series below? S=4, n=0, -2^n
Upgrade your grade with Knowee
Get personalized homework help. Review tough concepts in more detail, or go deeper into your topic by exploring other relevant questions.