Yes this is correct. if you do distribution and multiply 2 times x it's 2x. you then multiply 2 times 6 and this equals 12. add twelve and 8 and this equals 20. the answer 2x+20 is correct
Answer:
77
Step-by-step explanation:
4x^2-6x+7
Let x = 5
4* 5^2-6*5+7
4 * 25 -30 +7
100-30+7
7-+7
77
The value of B = 2x (3x^2 + 1) (2x + 5)
Given: 12x^4 + 30x^3 + 4x^2 + 10x
Req'd: B = ?
Sol'n:
*use elimination
solving for B:
= 2x (6x^3 +15x^2 + 2x +5)
= 2x (3x^2(2x + 5 +2x +5)
= 2x (3x^2 + 1) (2x + 5)
2.20x is the dependent quantity. It is DEPENDANT on how much carpet you buy, it changes.
