Question

3. State whether the following statements are true or false. If false, support your
answer with reasons.
a) (a + 1)(a − 1)(a + 1) can be simplified to (a* – 1).
b) A cube of side 2 cm is cut into equal cubes of side 1 cm. The total surface area of the
cubes that are cut out is 192 cm?
C) If r varies inversely to the reciprocal of y, the product of x and y is a constant
d) The expression ax2 + by2 + bx2 + ay can be factorised as (x2 + y2)(x + y).
e) The value of (x + a)(x + b) is x2 + abx + (a + b).​

Answer 1

T

T

T

F

T

it is because I am topper of maths in my college