Q45 of 128 Page 224

Fill in the blanks to make the statements true:

Factorised form of 4y2 – 12y + 9 is ……… .

(2y - 3)2

Here, the polynomial has three terms where the first and the last term are perfect squares with a negative sign of the middle term. So it is of the form where a = 2y and b = 3 such that




Now, we know that


Comparing with this, we get,



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43

Fill in the blanks to make the statements true:

Common factor of ax2 + bx is ……….. .

 44

Fill in the blanks to make the statements true:

Factorised form of 18mn + 10mnp is ……… .

 46

Fill in the blanks to make the statements true:

38x3y2z÷ 19xy2 is equal to ………. .

 47

Fill in the blanks to make the statements true:

Volume of a rectangular box with length 2x, breadth 3y and height 4z is ……………. .