Solve by completing the square.?

Question

#35-37(Whole answer only)
#38-40(Rational answer only)
x2=x square

35.)x2+10x=39
36.)x2+16x=17
37.)x2-24x=-44
38.)x2-6x-11=0
39.)x2-2x=5
40.)x2+30x-7=0

*Can you guys please give me the answers to these problems?PLEASE I"M BEGGING YOU!

Answer 1

You should do your math homework yourself or you will fail the test, but here ya go:
35) x=3 or x= -13
36) x=1 or x= -17
37) x=22 or x=2
38) x= 3+2(square root of 5) or x= 3-2(square root of 5)
39) x= 1+(square root of 6) or x= 1-(square root of 6)
40) x= 15+2(square root of 58) or x=15-2(square root of 58)

figure out which ones are rational by plugging it into the calculator.

Answer 2

ending up the sq. ability including some thing to both area that makes the area with x in it a attractive sq.. thus, you upload 16. x^2 + 8x = 9 x^2 + 8x + 16 = 9 + 16 (x+4)^2 = 25 taking the sq. root of both area x+4 = +/- 5 x+4 = 5 x = a million x+4 = -5 x = -9 How did i know to apply 16? I basically took 1/2 of 8 and squared it. Works every time. by the fashion, it may were more beneficial accessible to scrub up this problem by ability of factoring. x^2 + 8x - 9 = 0 (x-a million)(x+9) = 0 x-a million = 0 x = a million x+9 = 0 x = -9

Answer 3

35.) 3, -13
36.) -17, 1
37.) 2, 22
38.)
39.)
40.)

rest couldnt find a rational integer