(9x2 + 7)(9x2 - 7) = 81x4 - 49
Chat with our AI personalities
It is: (x-2)(x-7) when factored
Integral : 9x + 8 = 9(x squared)/2 + 8x Differential : 9x +8 = 9
x^(2) + 9x + 14 = 0 To solve. Since 'x^(2)' has a coefficient of '1' ( not shown), then look at the constant' 14'. Look for two numbers that multiply to ;14; and add to ;9; . To do this write down all the factors of '14' . ; 1,2,7,14. . Select '2' & '7' . 2 X 7 = 14 & 2 + 7 = 9. Hence , factoring ( x + 2)( x + 7) = 0 Hence the solutions are x = -2 & x = -7 .
2x+3=9x 3=9x-2x 3=7x x=3/7
It is (x+6)(x+7) when factored