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Amanda [17]
3 years ago
12

Find the value of x.A. 90 B. 70 C. 20 D. 50​

Mathematics
1 answer:
emmasim [6.3K]3 years ago
7 0

Answer: B. 70

Step-by-step explanation:

i actually can't tell but i think this is right

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F(x) = (x - 2)²(x+1)​
Inessa [10]

(x - 2)²(x+1)​

(x-2)(x-2)

multiply the two brackets together

(x)(x)=x^2

(x)(-2)=-2x

(-2)(x)=-2x

(-2)(-2)=4

x^2-2x-2x+4

x^2-4x+4

(x^2-4x+4)(x+1)

multiply the brackets together

(x^2)(x)=x^3

(x^2)(1)=x^2

(-4x)(x)=-4x^2

(-4x)(1)=-4x

(4)(1)=4

x^3+x^2-4x^2-4x+4x+4

Answer:

x^3-3x^2+4

5 0
3 years ago
Help me please I need help
cluponka [151]

Answer:

A=5, B=3y

Step-by-step explanation:

Please see attached picture for full solution

3 0
3 years ago
Factorise fully 18x+9
galina1969 [7]

Answer: 9 (2x + 1)

Step-by-step explanation: i hope i helped

5 0
3 years ago
If the degree of a polynomial function is even and the leading coefficient is negative, then the end behavior of the function is
-Dominant- [34]

Answer:

Its the last option.

Step-by-step explanation:

The function will  rise from the left and descend to the right.

f(x) ---> -∝ as x ---> -∝ and f(x) ---> -∝ as x ---> ∝

4 0
2 years ago
What number is it? the difference of 9 and three times equals 69. find the number
Mazyrski [523]
Consider the number as 'n' (for now)
3n - 9 = 69
3n = 69 + 9
3n = 78
n = 78/3
n = 26
Therefore, The number is 26
8 0
3 years ago
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