Math, asked by ckp2246, 8 months ago

If a+b = 7 and ab= 12 then a4-64 =

Answers

Answered by ajaykundu7220

1

Step-by-step explanation:

a+b= 7 -- 1st eq

ab= 12

b= 12/a

putting b in 1st equation

a+12/a=7

a^ +12 -7a =0

solving this quadratic equation we get

a=3 or 4

hope it will help you

mark me as brainlist

Answered by Sk218

2

Step-by-step explanation:

See answer in above picture

Attachments:

Previous Question

Next Question

Similar questions

Math, 4 months ago

सामी कर्ण हल आलेख से $4x - 5y + 16 = 0 \\ 2x + y - 6 = 0$ ...

Math, 4 months ago

please koi aise book maths ki btao jisme class 9 maths ki puri ncert solved ho...saare uski exercises , theorems, examples sbb please...

English, 4 months ago

$\huge\bigstar\underline\mathfrak{Question:-}$ 1)Difference between shadow and image. 2) define :- = luminous objects =rectilinear propagation ___________________________ No Spamming ✨✨ ✔ Content Quality Needed! ⏺ No Short Answers!

Computer Science, 8 months ago

____ can only be read. It is a _____ memory device.

Chemistry, 8 months ago

what is the oxidation number of cr in k2cr2o7...

Physics, 10 months ago

A proton, a neutron, an electron and an α-particle have same energy. Then, their de-Broglie wavelengths compare as(a) $\lambda_{p}=\lambda_{n}\ \textgreater \ \lambda_{e}\ \textgreater \ \lambda_{\alpha}$ (b) $\lambda_{\alpha}\ \textless \ \lambda_{p}=\lambda_{n}\ \textgreater \ \lambda_{e}$ (c) [tex]\lambda_{e}\ \textless \ \lambda_{p}=\lambda_{n}\ \textgreater \...

Math, 10 months ago

What is the difference between 0 digree and 360 digree?

Math, 10 months ago

What statistical test to use for yes or no questions?