Question

Factorise the following:a² - 144​

Answer 1

Answer:

$( a+ 12)(a - 12)$

Step-by-step explanation:

${a}^{2} - 144$

${a}^{2} - {12}^{2}$

Since both terms are perfect squares, factor using the difference of squares formula,

${a}^{2} - {b}^{2} = ( a+b )(a - b)$

where a=a and b=12.

$(a+ 12)(a - 12)$

Hope it is helpful....

Answer 2

FORMULA:

• (a)² - (b)² = (a + b)(a - b)

ANSWER:

• a² - 144
• (a)² - (12)²
• (a + 12)(a - 12)