Pls help 13 points and brainliest for quickest correct answer If X=2 and Y=5, work out the value of 3xsquared +2ysquared

136

Step-by-step explanation:

^2 means exponent of 2 or squared

we're gonna turn x into 2 and y into 5 sense that's what its equal to

when working with variables you multiply x times the number next to it so,

(3 x 2 ^2) +(2 x 5 ^2) will be the actual problem.

3 x 2 = 6

2 x 5 = 10

now sense they're squared it means you have to multiply it by itself

6 x 6 = 36

10 x 10 = 100

so, 100 + 36 = 136

x is variable or an unknown value to find

example:

2x = 5 which means x = 3

step-by-step explanation:

ok so im not 100% sure but you would start by adding 5.1t and 1.9t beacuse they have the same variable. that is 7t.   then add -3.6 + 1.2 which is -2.4

so then keep that as -2.4 + 7t. i apologize if this is incorrect. best luck on your test < 3