Question

please help me in this 2 Sums ​

Answer 1

Step-by-step explanation:

a)2a^4 - b^4 =4

b)4x=20

x=20/4

x=5

Answer 2

Answer:

HEY YOO!!! HERE IS YOUR ANSWER BUD

Step-by-step explanation:

 a)  

given a = 2

and        b = -2

therefore by substituiting the value of a & b

we get 2 (2) ² - b (-2) ² = 2 (4) -  (4) = 8 - 4 = 4

b)

3 X - 15 - 5 + X = 0

therefore ,

4X - 20 = 0

4X = 20

X = 20/4 = 5

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