Question

(6.4) ^2 - (5.4) ^2/(8.9)^2 +(8.9) ×(2.2) +(1.1)^2​

Answer 1

Answer:

61.38

Step-by-step explanation:

(6.4) ^2 - (5.4) ^2/(8.9)^2 +(8.9) ×(2.2) +(1.1)^2​

40.96-29.16/79.21+19.58+1.21

61.38

Answer 2

Answer:0.118

Step-by-step explanation: at the numerator the identity a^2-b^2=(a+b)(a-b) will be applied so the answer will be 11.8

now the sum is    11.8/(8.9)^2 +(8.9)x(2.2)+(1.1)^2

now at the denominator (8.9)^2 will get split into (8 + 0.9)^2 and now the identity will be applied (a+b)^2= (a)^2 + (b)^2+ 2ab

so the answer will be 79.21

now the denominator will be 79.21 + 8.9 x 2.2 + 1.21 (the square of 1.1 is 1.21)

by applying the BODAMS rule first we will multiply the 8.9 and 2.2

now the denominator will be 79.21 + 19.58 + 1.21

now will add the numbers in the denominator which will be 100

now the fraction will be 11.8/100 = 0.118