Question

Solve the simultaneous equations
x
+
7
y
=
15
x
+
2
y
=
5

Answer 1

Answer:

Answer is attached here

Answer 2

Answer:

$Given : 16x4+54x</p><p></p><p>We can write the given question as,</p><p></p><p>16x4+54x=2x(8x3+27)</p><p></p><p>According to the equation,</p><p>a3+b3=(a+b)(a2−ab+b2)</p><p></p><p>So we get,</p><p>2x(8x3+27)=2x((2x)3+33)</p><p></p><p>Using the equation,</p><p>=2x((2x)+3)((2x)2−(2x)(3)+(3)2)</p><p></p><p>16x4+54x=2x(2x+3)(4x2−6x+9) </p><p></p><p>..$

hope it will help