Question

Find the value of x if: x2- 91= 2.3 × 2.3 + 2 × 0.7 × 2.3 + 0.7 × 0.7​

Answer 1

Answer:

x=-10,10....

Step-by-step explanation:

${x}^{2} - 91 = 2.3 \times 2.3 + 2 \times 0.7 \times 2.3 + 0.7 \times 0.7 \\ {x}^{2} = 91 + 5.29 + 3.22 + 0.49 \\ {x}^{2} = 100 \\ x = - 10 \: or \: + 10$

hope it helps..plz mark it as brainliest answer...

Answer 2

Answer:

answer is 100

clear explanation given