
Algebra Identities and Formulas
Last updated at Dec. 16, 2024 by Teachoo
Question 6 Using identities, evaluate. (ix) 1.05×9.5 1.05×9.5 = 105/100×95/10 = (105 × 95)/1000 = ((100 + 5) × (100 − 5))/1000 (𝑎+𝑏)(𝑎−𝑏)=𝑎^2−𝑏^2 Putting 𝑎 = 100 & 𝑏 = 5 = ((100)^2 − (5)^2)/1000 = (10000 − 25)/1000 = 9975/1000 = 9.975