7 = 2n - 2
n= a number so twice a number is 2n and 7 is 2 less than twice this number.
7^50
= 1.798 × 10^42
i am a mathematics teacher. if anything to ask please pm me
<span>4w^3−8w+12 = 4 (w^3 - 2w + 3)
</span><span>5t^2+20t+50 = 5 (t^2 + 4t + 10)</span>
