Question

Use an expansion formula to find the values.
(i) (102)​

Answer 1

Answer:

10404

Step-by-step explanation:

(102)^2

=(100+2)^2

=(100)^2+2×100×2+(2)^2 {using (a+b) ^2=a^2+2ab+b^2}

=10000+400+4

=10404

Answer 2

• (102)

(100+2)^2

• Formula :
• ${a + b}^{2 } = {a}^{2} + {b + }^{2} + 2ab</li><li> \\ {100}^{2} + {2}^{2} + 2(100 \times 2)$
• 10000+4+400.
• =>10,404