Question

Fill in the missing term to make the expression a perfect square trinomial.

1.x2+ blank +25
2.4x2+16+ blank
3.x2-18x+ blank
4.blank +20m+1
5.x2- blank +y2

Answer 1

1. ×2+10x2+25

=(×+5)(×+5)

2. 4x2+16+

=(2×+4)(2×+4)