If x2 + 12 = 7; find the value of : 7×3 + 8x – 7/3 – 8/

Question

If x2 + 12 = 7; find the value of : 7×3 + 8x – 7/3 – 8/

in progress 0
Natalia 1 month 2021-10-18T23:28:49+00:00 1 Answer 0 views 0

Answers ( )

    0
    2021-10-18T23:30:29+00:00

    Step-by-step explanation:

    x2 + 12 = 7 \\  \\ 2x + 12  = 7 \\  \\ 14x = 7 \\  \\ x =  \frac{14}{7}  = 2 \\  \\  \\  \\  \\  \\ find \: the \: value \: of \:  \\ 7x3 + 8x - 7  \div 3 - 8 \\  \\ 7x11x - 7 \div 3 - 8 \\  \\ 18x + 7 \div 3 - 8 \\  \\ 25x \div  - 5 \\  \\ x =  \frac{25}{5}  = 5 \\  = 5 \: is \: the \: value. \\  \\ mark \:  \\  \\ my \:  \\  \\ answer \\  \\ inbox \\  \\ me \\  \\ i \:  \\  \\ hope \\  \\ it \\  \\ help \\  \\ you \\  \\ good \\  \\ evening

Leave an answer

Browse

14:4+1-6*5-7*14:3+5 = ? ( )