Question

factories 100-9x^2

​

Answer 1

Step-by-step explanation:

$100 - 9x {}^{2} \\ (10) {}^{2} - 3 {x}^{2} \\ = (10 - 3)(10 + 3) \\ = 7 \times 13 \\ = 91$

I hope it helps you

Answer 2

Answer:

100-9x^2

=(10)^2-(3x)^2

=(10+3) (10-3)

= 13×7

=91