itomath.com

(1I) Perfect squares factorisation

Activity 1

Look for perfect squares and factorize if possible.
If it is not possible, type “no”.

$x^2+6x+9$

$x^2+4x+9$

$x^2-13x+25$

$x^2-10x+25$

$x^2+16x+64$

$x^2+8x+64$

$x^2-14x+49$

$x^2-7x+49$

$x^2+14x-49$

$x^2-14x-49$

Activity 2

Look for perfect squares and factorize if possible.
If it is not possible, type “no”.

$4x^2+4x+1$

$4x^2+2x+1$

$9x^2-12x+4$

$9x^2-16x+4$

$25x^2+18x+16$

$25x^2+40x+16$

$49x^2-26x+36$

$49x^2-84x+36$

$49x^2+84x-36$

$-49x^2-84x-36$
Example 26


*Write your answers in the form $\left( a \pm b \right)^2$

a)

b)
Example 27


*a) Write your answer in the form $\left( a \pm b \right)^2$
*b) Write your answer in the form $-a \left( b \pm c \right)^2$

a)

b)

Suggested Practice

(1I on P.47) #1, 2 odd letters