What is the value of 49x squared = 25 x

What is the value of 49x squared = 25 x

49x² = 25
x² = 25/49
X = 5 / 7 or x = - 5 / 7

Decomposition factor: (1) x & # 178; - 4x-12
2) If the polynomial 4x & # 178; + 1 plus a monomial can become a complete square of an integral, then the monomial is
(3) Calculate (2 + 1) (2 & # 178; + 1) (24 power + 1)... (24 power + 1)
(4) If (X & # 178; + MX + n) (X & # 178; - 5x + 3) does not contain X & # 179; and X & # 178; after expansion, find the value of M and n

(1)x²-4x-12=（x-6)(x+2)
2) If the polynomial 4x & # 178; + 1 plus a monomial can become a complete square of an integral, then the monomial is (4x or - 4x)
(3) Calculate (2 + 1) (2 & # 178; + 1) (24 power + 1)... (24 power + 1)
(2 + 1) (2 & # 178; + 1) (24 power + 1)... (24 power + 1)
=(2-1) × (2 + 1) (2 & # 178; + 1) (24 power + 1)... (24 power + 1)
=The 128th power of 2-1
(4) If (X & # 178; + MX + n) (X & # 178; - 5x + 3) does not contain X & # 179; and X & # 178; after expansion, find the value of M and n
（x²+mx+n)(x²-5x+3)
=x^4-5x³+3x²+mx³-5mx²+3mx+nx²-5nx+3n
=x^4+（-5+m）x³+（3-5m+n）x²+（3m-5n）x+3n
∴-5+m=0,3-5m+n=0
m=5
n=22

Solve the equation 12x-5.6 * 9 = 81.6 8x-4 * 72 = 0

12X-5.6*9=81.6
12X-50.4=81.6
12X=50.4+81.6
12X=132
X=132/12
X=11
8X-4*72=0
8X=288
X=288/8
X=36

How to solve the equation: 8x + 5 (12x) = 81?

8x+5(12x)=81
8x+60x=81
68x=81
x=81/68