Question

Solve by factoring: a² = 25

Answer 1

A=+ or - 5 bc -5x-5 or 5x5 equals to 25

Answer 2

Answer:

$a=$ ±$5$

Step-by-step explanation:

$a^{2} =25$

equal to zero

$a^{2} -25=0$

factor: difference of squares

$(a+5)(a-5)=0$

first factor:

$a+5=0\\a_{1} =-5$

second factor:

$a-5=0\\a_{2} =5$

Hope this helps