Question

If 2x − 2 = 4 and 0.05y = 0.15,find the value of ? y²- x²​

Answer 1

Answer:

0

Step-by-step explanation:

2x-2=4

2x=6

x=3

0.05y=0.15

Multiplying both sides by 100.

5y=15

y=3

Therefore, $y^{2} -x^{2} = 3^{2} - 3^{2} = 9-9 =0$

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Answer 2

Answer:

0

Step-by-step explanation:

because ..

a) 2x-2=4

2x=4+2

2x=6

=3

0.15÷0.5=3

so square of 3=9-9=0