Question

20. The value of the expression x(x–3) + 2 for x=1 is _______ .

21. The number of faces of a cube is _______ .

22. 3
^2 x 3^–5 x 3^6 = _________ .

23. The value of (3^0 + 4^–1

) x 2^2

= __________.

24. The usual form of 4.75 x 10^–3

is _________.

25. The common factor in the expression 4y–8y^2
is _____ .​

Answer 1

Step-by-step explanation:

20. The value of the expression x(x–3) + 2 for x=1 is __0_____ .

21. The number of faces of a cube is _6__ .

22. 3

^2 x 3^–5 x 3^6 = ____1491.87____ .

23. The value of (3^0 + 4^–1

) x 2^2

= ___5_______.

24. The usual form of 4.75 x 10^–3

is __0.00475___.

25. The common factor in the expression 4y–8y^2

is __4y___ .